879304865 has 4 divisors (see below), whose sum is σ = 1055165844. Its totient is φ = 703443888.

The previous prime is 879304859. The next prime is 879304873. The reversal of 879304865 is 568403978.

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

It can be written as a sum of positive squares in 2 ways, for example, as 105185536 + 774119329 = 10256^2 + 27823^2 .

It is a cyclic number.

It is not a de Polignac number, because 879304865 - 2⁴ = 879304849 is a prime.

It is a super-2 number, since 2×879304865² = 1546354091225336450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87930482 + ... + 87930491.

It is an arithmetic number, because the mean of its divisors is an integer number (263791461).

Almost surely, 2^879304865 is an apocalyptic number.

It is an amenable number.

879304865 is a deficient number, since it is larger than the sum of its proper divisors (175860979).

879304865 is a wasteful number, since it uses less digits than its factorization.

879304865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175860978.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 879304865 is about 29653.0751356415. The cubic root of 879304865 is about 958.0315804258.

The spelling of 879304865 in words is "eight hundred seventy-nine million, three hundred four thousand, eight hundred sixty-five".