801696689 has 4 divisors (see below), whose sum is σ = 809480256. Its totient is φ = 793913124.

The previous prime is 801696683. The next prime is 801696703. The reversal of 801696689 is 986696108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 801696689 - 2⁸ = 801696433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 801696689.

It is not an unprimeable number, because it can be changed into a prime (801696683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3891629 + ... + 3891834.

It is an arithmetic number, because the mean of its divisors is an integer number (202370064).

Almost surely, 2^801696689 is an apocalyptic number.

It is an amenable number.

801696689 is a deficient number, since it is larger than the sum of its proper divisors (7783567).

801696689 is a wasteful number, since it uses less digits than its factorization.

801696689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783566.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 801696689 is about 28314.2488687233. The cubic root of 801696689 is about 928.9735810368.

The spelling of 801696689 in words is "eight hundred one million, six hundred ninety-six thousand, six hundred eighty-nine".