477660645 has 240 divisors, whose sum is σ = 1155420288. Its totient is φ = 183306240.

The previous prime is 477660571. The next prime is 477660647. The reversal of 477660645 is 546066774.

It is a happy number.

It is not a de Polignac number, because 477660645 - 2⁷ = 477660517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 477660645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477660647) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 9012439 + ... + 9012491.

Almost surely, 2^477660645 is an apocalyptic number.

477660645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

477660645 is an abundant number, since it is smaller than the sum of its proper divisors (677759643).

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

477660645 is a wasteful number, since it uses less digits than its factorization.

477660645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 477660645 is about 21855.4488629266. The cubic root of 477660645 is about 781.6994749443.

The spelling of 477660645 in words is "four hundred seventy-seven million, six hundred sixty thousand, six hundred forty-five".