879684440 has 32 divisors (see below), whose sum is σ = 1981478160. Its totient is φ = 351484800.

The previous prime is 879684437. The next prime is 879684451. The reversal of 879684440 is 44486978.

It is a super-2 number, since 2×879684440² = 1547689427956227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25955 + ... + 49325.

Almost surely, 2^879684440 is an apocalyptic number.

It is an amenable number.

879684440 is an abundant number, since it is smaller than the sum of its proper divisors (1101793720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879684440 is a wasteful number, since it uses less digits than its factorization.

879684440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24323 (or 24319 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 879684440 is about 29659.4747087672. The cubic root of 879684440 is about 958.1694137449.

The spelling of 879684440 in words is "eight hundred seventy-nine million, six hundred eighty-four thousand, four hundred forty".