564617878 has 16 divisors (see below), whose sum is σ = 955780560. Its totient is φ = 247794400.

The previous prime is 564617873. The next prime is 564617899. The reversal of 564617878 is 878716465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564617873) 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, 441853 + ... + 443128.

It is an arithmetic number, because the mean of its divisors is an integer number (59736285).

Almost surely, 2^564617878 is an apocalyptic number.

564617878 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

564617878 is a deficient number, since it is larger than the sum of its proper divisors (391162682).

564617878 is a wasteful number, since it uses less digits than its factorization.

564617878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885023.

The product of its digits is 2257920, while the sum is 52.

The square root of 564617878 is about 23761.6892917991. The cubic root of 564617878 is about 826.5165264169.

The spelling of 564617878 in words is "five hundred sixty-four million, six hundred seventeen thousand, eight hundred seventy-eight".