485687979 has 48 divisors (see below), whose sum is σ = 814055424. Its totient is φ = 273326400.

The previous prime is 485687959. The next prime is 485687981. The reversal of 485687979 is 979786584.

485687979 is a `hidden beast` number, since 485 + 6 + 87 + 9 + 79 = 666.

It is not a de Polignac number, because 485687979 - 2⁵ = 485687947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (485687929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2177862 + ... + 2178084.

It is an arithmetic number, because the mean of its divisors is an integer number (16959488).

Almost surely, 2^485687979 is an apocalyptic number.

485687979 is a deficient number, since it is larger than the sum of its proper divisors (328367445).

485687979 is a wasteful number, since it uses less digits than its factorization.

485687979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 605 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 485687979 is about 22038.3297688368. The cubic root of 485687979 is about 786.0541257912.

The spelling of 485687979 in words is "four hundred eighty-five million, six hundred eighty-seven thousand, nine hundred seventy-nine".