264630791 has 2 divisors, whose sum is σ = 264630792. Its totient is φ = 264630790.

The previous prime is 264630781. The next prime is 264630881. The reversal of 264630791 is 197036462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264630791 - 2¹⁴ = 264614407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264630761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132315395 + 132315396.

It is an arithmetic number, because the mean of its divisors is an integer number (132315396).

Almost surely, 2^264630791 is an apocalyptic number.

264630791 is a deficient number, since it is larger than the sum of its proper divisors (1).

264630791 is an equidigital number, since it uses as much as digits as its factorization.

264630791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 264630791 is about 16267.4764791593. The cubic root of 264630791 is about 642.0173898558.

The spelling of 264630791 in words is "two hundred sixty-four million, six hundred thirty thousand, seven hundred ninety-one".