521477464 has 32 divisors (see below), whose sum is σ = 995005440. Its totient is φ = 256183200.

The previous prime is 521477423. The next prime is 521477491. The reversal of 521477464 is 464774125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105529 + ... + 110359.

It is an arithmetic number, because the mean of its divisors is an integer number (31093920).

Almost surely, 2^521477464 is an apocalyptic number.

It is an amenable number.

521477464 is a deficient number, since it is larger than the sum of its proper divisors (473527976).

521477464 is a wasteful number, since it uses less digits than its factorization.

521477464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071 (or 5067 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 521477464 is about 22835.8810646754. The cubic root of 521477464 is about 804.9060312365.

The spelling of 521477464 in words is "five hundred twenty-one million, four hundred seventy-seven thousand, four hundred sixty-four".