283697912689 has 3 divisors (see below), whose sum is σ = 283698445323. Its totient is φ = 283697380056.

The previous prime is 283697912681. The next prime is 283697912699. The reversal of 283697912689 is 986219796382.

The square root of 283697912689 is 532633.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 986219796382 = 2 ⋅493109898191.

It can be written as a sum of positive squares in only one way, i.e., 15382200625 + 268315712064 = 124025^2 + 517992^2 .

It is not a de Polignac number, because 283697912689 - 2³ = 283697912681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (283697912681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 266317 + ... + 798949.

It is an arithmetic number, because the mean of its divisors is an integer number (94566148441).

Almost surely, 2^283697912689 is an apocalyptic number.

283697912689 is the 532633-rd square number.

283697912689 is the 266317-th centered octagonal number.

It is an amenable number.

283697912689 is a deficient number, since it is larger than the sum of its proper divisors (532634).

283697912689 is an frugal number, since it uses more digits than its factorization.

283697912689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065266 (or 532633 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 70.

The spelling of 283697912689 in words is "two hundred eighty-three billion, six hundred ninety-seven million, nine hundred twelve thousand, six hundred eighty-nine".