478868831 has 8 divisors (see below), whose sum is σ = 554776224. Its totient is φ = 404835840.

The previous prime is 478868813. The next prime is 478868879. The reversal of 478868831 is 138868874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478868831 - 2²⁶ = 411759967 is a prime.

It is a super-2 number, since 2×478868831² = 458630714606613122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478868881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468050 + ... + 469071.

It is an arithmetic number, because the mean of its divisors is an integer number (69347028).

Almost surely, 2^478868831 is an apocalyptic number.

478868831 is a deficient number, since it is larger than the sum of its proper divisors (75907393).

478868831 is an equidigital number, since it uses as much as digits as its factorization.

478868831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937201.

The product of its digits is 2064384, while the sum is 53.

The square root of 478868831 is about 21883.0717907701. The cubic root of 478868831 is about 782.3579921064.

The spelling of 478868831 in words is "four hundred seventy-eight million, eight hundred sixty-eight thousand, eight hundred thirty-one".