879502661 has 4 divisors (see below), whose sum is σ = 884769312. Its totient is φ = 874236012.

The previous prime is 879502651. The next prime is 879502669. The reversal of 879502661 is 166205978.

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 879502661 - 2⁶ = 879502597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879502669) by changing a digit.

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, 2633075 + ... + 2633408.

It is an arithmetic number, because the mean of its divisors is an integer number (221192328).

Almost surely, 2^879502661 is an apocalyptic number.

It is an amenable number.

879502661 is a deficient number, since it is larger than the sum of its proper divisors (5266651).

879502661 is a wasteful number, since it uses less digits than its factorization.

879502661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266650.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 879502661 is about 29656.4101165330. The cubic root of 879502661 is about 958.1034101233.

The spelling of 879502661 in words is "eight hundred seventy-nine million, five hundred two thousand, six hundred sixty-one".