564643476 has 18 divisors (see below), whose sum is σ = 1427293322. Its totient is φ = 188214480.

The previous prime is 564643459. The next prime is 564643481. The reversal of 564643476 is 674346465.

It is a happy number.

564643476 is a `hidden beast` number, since 564 + 6 + 43 + 47 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 511935876 + 52707600 = 22626^2 + 7260^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7842235 + ... + 7842306.

Almost surely, 2^564643476 is an apocalyptic number.

It is an amenable number.

564643476 is an abundant number, since it is smaller than the sum of its proper divisors (862649846).

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

564643476 is a wasteful number, since it uses less digits than its factorization.

564643476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684551 (or 15684546 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 564643476 is about 23762.2279258490. The cubic root of 564643476 is about 826.5290167820.

The spelling of 564643476 in words is "five hundred sixty-four million, six hundred forty-three thousand, four hundred seventy-six".