572978807 has 4 divisors (see below), whose sum is σ = 573193800. Its totient is φ = 572763816.

The previous prime is 572978789. The next prime is 572978867. The reversal of 572978807 is 708879275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572978807 is a prime.

It is a super-2 number, since 2×572978807² = 656609426542286498, 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 (572978867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103448 + ... + 108845.

It is an arithmetic number, because the mean of its divisors is an integer number (143298450).

Almost surely, 2^572978807 is an apocalyptic number.

572978807 is a deficient number, since it is larger than the sum of its proper divisors (214993).

572978807 is a wasteful number, since it uses less digits than its factorization.

572978807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214992.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The square root of 572978807 is about 23936.9757279402. The cubic root of 572978807 is about 830.5762713059.

The spelling of 572978807 in words is "five hundred seventy-two million, nine hundred seventy-eight thousand, eight hundred seven".