264630761 has 2 divisors, whose sum is σ = 264630762. Its totient is φ = 264630760.

The previous prime is 264630757. The next prime is 264630781. The reversal of 264630761 is 167036462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220819600 + 43811161 = 14860^2 + 6619^2 .

It is a cyclic number.

It is not a de Polignac number, because 264630761 - 2² = 264630757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264630781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132315380 + 132315381.

It is an arithmetic number, because the mean of its divisors is an integer number (132315381).

Almost surely, 2^264630761 is an apocalyptic number.

It is an amenable number.

264630761 is a deficient number, since it is larger than the sum of its proper divisors (1).

264630761 is an equidigital number, since it uses as much as digits as its factorization.

264630761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 264630761 is about 16267.4755570740. The cubic root of 264630761 is about 642.0173655949.

The spelling of 264630761 in words is "two hundred sixty-four million, six hundred thirty thousand, seven hundred sixty-one".