564039477 has 8 divisors (see below), whose sum is σ = 835614080. Its totient is φ = 376026300.

The previous prime is 564039467. The next prime is 564039499. The reversal of 564039477 is 774930465.

It is a de Polignac number, because none of the positive numbers 2^k-564039477 is a prime.

It is a super-2 number, since 2×564039477² = 636281063228867058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564039467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10445149 + ... + 10445202.

It is an arithmetic number, because the mean of its divisors is an integer number (104451760).

Almost surely, 2^564039477 is an apocalyptic number.

It is an amenable number.

564039477 is a deficient number, since it is larger than the sum of its proper divisors (271574603).

564039477 is a wasteful number, since it uses less digits than its factorization.

564039477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20890360 (or 20890354 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 564039477 is about 23749.5153003172. The cubic root of 564039477 is about 826.2341990001.

The spelling of 564039477 in words is "five hundred sixty-four million, thirty-nine thousand, four hundred seventy-seven".