568977408 has 72 divisors (see below), whose sum is σ = 1643364450. Its totient is φ = 189652992.

The previous prime is 568977391. The next prime is 568977413. The reversal of 568977408 is 804779865.

568977408 is a `hidden beast` number, since 568 + 9 + 7 + 74 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 562258944 + 6718464 = 23712^2 + 2592^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2998 + ... + 33866.

Almost surely, 2^568977408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568977408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821682225).

568977408 is an abundant number, since it is smaller than the sum of its proper divisors (1074387042).

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

568977408 is a wasteful number, since it uses less digits than its factorization.

568977408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30897 (or 30874 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 568977408 is about 23853.2473260980. The cubic root of 568977408 is about 828.6383091702.

The spelling of 568977408 in words is "five hundred sixty-eight million, nine hundred seventy-seven thousand, four hundred eight".