485315978 has 16 divisors (see below), whose sum is σ = 832339584. Its totient is φ = 207900240.

The previous prime is 485315927. The next prime is 485315981. The reversal of 485315978 is 879513584.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32051 + ... + 44697.

It is an arithmetic number, because the mean of its divisors is an integer number (52021224).

Almost surely, 2^485315978 is an apocalyptic number.

485315978 is a deficient number, since it is larger than the sum of its proper divisors (347023606).

485315978 is a wasteful number, since it uses less digits than its factorization.

485315978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15397.

The product of its digits is 1209600, while the sum is 50.

The square root of 485315978 is about 22029.8882884140. Note that the first 3 decimals coincide. The cubic root of 485315978 is about 785.8533881291.

The spelling of 485315978 in words is "four hundred eighty-five million, three hundred fifteen thousand, nine hundred seventy-eight".