572720867 has 2 divisors, whose sum is σ = 572720868. Its totient is φ = 572720866.

The previous prime is 572720807. The next prime is 572720879. The reversal of 572720867 is 768027275.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572720867 is a prime.

It is not a weakly prime, because it can be changed into another prime (572720807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286360433 + 286360434.

It is an arithmetic number, because the mean of its divisors is an integer number (286360434).

Almost surely, 2^572720867 is an apocalyptic number.

572720867 is a deficient number, since it is larger than the sum of its proper divisors (1).

572720867 is an equidigital number, since it uses as much as digits as its factorization.

572720867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 572720867 is about 23931.5872227481. The cubic root of 572720867 is about 830.4516180628.

It can be divided in two parts, 5727208 and 67, that added together give a palindrome (5727275).

The spelling of 572720867 in words is "five hundred seventy-two million, seven hundred twenty thousand, eight hundred sixty-seven".