564278077 has 8 divisors (see below), whose sum is σ = 617086080. Its totient is φ = 511721760.

The previous prime is 564278047. The next prime is 564278081. The reversal of 564278077 is 770872465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 564278077 - 2¹¹ = 564276029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564278047) 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, 58213 + ... + 67210.

It is an arithmetic number, because the mean of its divisors is an integer number (77135760).

Almost surely, 2^564278077 is an apocalyptic number.

It is an amenable number.

564278077 is a deficient number, since it is larger than the sum of its proper divisors (52808003).

564278077 is a wasteful number, since it uses less digits than its factorization.

564278077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125843.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 564278077 is about 23754.5380296060. The cubic root of 564278077 is about 826.3506871163.

The spelling of 564278077 in words is "five hundred sixty-four million, two hundred seventy-eight thousand, seventy-seven".