264817957 has 2 divisors, whose sum is σ = 264817958. Its totient is φ = 264817956.

The previous prime is 264817933. The next prime is 264817961. The reversal of 264817957 is 759718462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241305156 + 23512801 = 15534^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 264817957 - 2⁷ = 264817829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264817957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264817967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132408978 + 132408979.

It is an arithmetic number, because the mean of its divisors is an integer number (132408979).

Almost surely, 2^264817957 is an apocalyptic number.

It is an amenable number.

264817957 is a deficient number, since it is larger than the sum of its proper divisors (1).

264817957 is an equidigital number, since it uses as much as digits as its factorization.

264817957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 264817957 is about 16273.2282292113. The cubic root of 264817957 is about 642.1687145347.

The spelling of 264817957 in words is "two hundred sixty-four million, eight hundred seventeen thousand, nine hundred fifty-seven".