869496655 has 4 divisors (see below), whose sum is σ = 1043395992. Its totient is φ = 695597320.

The previous prime is 869496643. The next prime is 869496697. The reversal of 869496655 is 556694968.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 869496655 - 2⁷ = 869496527 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 869496655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86949661 + ... + 86949670.

It is an arithmetic number, because the mean of its divisors is an integer number (260848998).

Almost surely, 2^869496655 is an apocalyptic number.

869496655 is a deficient number, since it is larger than the sum of its proper divisors (173899337).

869496655 is a wasteful number, since it uses less digits than its factorization.

869496655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173899336.

The product of its digits is 13996800, while the sum is 58.

The square root of 869496655 is about 29487.2286761574. The cubic root of 869496655 is about 954.4561306658.

The spelling of 869496655 in words is "eight hundred sixty-nine million, four hundred ninety-six thousand, six hundred fifty-five".