477969985 has 16 divisors (see below), whose sum is σ = 604344960. Its totient is φ = 361895040.

The previous prime is 477969979. The next prime is 477970001. The reversal of 477969985 is 589969774.

It is not a de Polignac number, because 477969985 - 2⁹ = 477969473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134380 + ... + 137890.

It is an arithmetic number, because the mean of its divisors is an integer number (37771560).

Almost surely, 2^477969985 is an apocalyptic number.

It is an amenable number.

477969985 is a deficient number, since it is larger than the sum of its proper divisors (126374975).

477969985 is a wasteful number, since it uses less digits than its factorization.

477969985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968.

The product of its digits is 34292160, while the sum is 64.

The square root of 477969985 is about 21862.5246712268. The cubic root of 477969985 is about 781.8681851899.

The spelling of 477969985 in words is "four hundred seventy-seven million, nine hundred sixty-nine thousand, nine hundred eighty-five".