472864477 has 4 divisors (see below), whose sum is σ = 485644636. Its totient is φ = 460084320.

The previous prime is 472864471. The next prime is 472864487. The reversal of 472864477 is 774468274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350850361 + 122014116 = 18731^2 + 11046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472864477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 472864477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472864471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6390024 + ... + 6390097.

It is an arithmetic number, because the mean of its divisors is an integer number (121411159).

Almost surely, 2^472864477 is an apocalyptic number.

It is an amenable number.

472864477 is a deficient number, since it is larger than the sum of its proper divisors (12780159).

472864477 is a wasteful number, since it uses less digits than its factorization.

472864477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780158.

The product of its digits is 2107392, while the sum is 49.

The square root of 472864477 is about 21745.4472706358. The cubic root of 472864477 is about 779.0743330827.

The spelling of 472864477 in words is "four hundred seventy-two million, eight hundred sixty-four thousand, four hundred seventy-seven".