264572939 has 2 divisors, whose sum is σ = 264572940. Its totient is φ = 264572938.

The previous prime is 264572927. The next prime is 264572947. The reversal of 264572939 is 939275462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264572939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 264572893 and 264572902.

It is not a weakly prime, because it can be changed into another prime (264572969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132286469 + 132286470.

It is an arithmetic number, because the mean of its divisors is an integer number (132286470).

Almost surely, 2^264572939 is an apocalyptic number.

264572939 is a deficient number, since it is larger than the sum of its proper divisors (1).

264572939 is an equidigital number, since it uses as much as digits as its factorization.

264572939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 264572939 is about 16265.6982327842. The cubic root of 264572939 is about 641.9706017794.

The spelling of 264572939 in words is "two hundred sixty-four million, five hundred seventy-two thousand, nine hundred thirty-nine".