289856612 has 12 divisors (see below), whose sum is σ = 507606960. Its totient is φ = 144826056.

The previous prime is 289856597. The next prime is 289856627. The reversal of 289856612 is 216658982.

It is an interprime number because it is at equal distance from previous prime (289856597) and next prime (289856627).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18998 + ... + 30669.

It is an arithmetic number, because the mean of its divisors is an integer number (42300580).

Almost surely, 2^289856612 is an apocalyptic number.

It is an amenable number.

289856612 is a deficient number, since it is larger than the sum of its proper divisors (217750348).

289856612 is a wasteful number, since it uses less digits than its factorization.

289856612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51130 (or 51128 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 289856612 is about 17025.1758287543. The cubic root of 289856612 is about 661.8014848220.

The spelling of 289856612 in words is "two hundred eighty-nine million, eight hundred fifty-six thousand, six hundred twelve".