477661620 has 48 divisors (see below), whose sum is σ = 1338861888. Its totient is φ = 127242240.

The previous prime is 477661567. The next prime is 477661637. The reversal of 477661620 is 26166774.

It is a congruent number.

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, 61812 + ... + 69108.

It is an arithmetic number, because the mean of its divisors is an integer number (27892956).

Almost surely, 2^477661620 is an apocalyptic number.

It is an amenable number.

477661620 is an abundant number, since it is smaller than the sum of its proper divisors (861200268).

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

477661620 is a wasteful number, since it uses less digits than its factorization.

477661620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400 (or 8398 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 477661620 is about 21855.4711685655. The cubic root of 477661620 is about 781.7000068117.

It can be divided in two parts, 47 and 7661620, that added together give a palindrome (7661667).

The spelling of 477661620 in words is "four hundred seventy-seven million, six hundred sixty-one thousand, six hundred twenty".