264790291 has 2 divisors, whose sum is σ = 264790292. Its totient is φ = 264790290.

The previous prime is 264790223. The next prime is 264790307. The reversal of 264790291 is 192097462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264790291 - 2²¹ = 262693139 is a prime.

It is a super-2 number, since 2×264790291² = 140227796415729362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264799291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132395145 + 132395146.

It is an arithmetic number, because the mean of its divisors is an integer number (132395146).

Almost surely, 2^264790291 is an apocalyptic number.

264790291 is a deficient number, since it is larger than the sum of its proper divisors (1).

264790291 is an equidigital number, since it uses as much as digits as its factorization.

264790291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 264790291 is about 16272.3781605517. The cubic root of 264790291 is about 642.1463509223.

The spelling of 264790291 in words is "two hundred sixty-four million, seven hundred ninety thousand, two hundred ninety-one".