264960287 has 4 divisors (see below), whose sum is σ = 265513920. Its totient is φ = 264406656.

The previous prime is 264960257. The next prime is 264960313. The reversal of 264960287 is 782069462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264960287 - 2²² = 260765983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264960217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276098 + ... + 277055.

It is an arithmetic number, because the mean of its divisors is an integer number (66378480).

Almost surely, 2^264960287 is an apocalyptic number.

264960287 is a deficient number, since it is larger than the sum of its proper divisors (553633).

264960287 is an equidigital number, since it uses as much as digits as its factorization.

264960287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553632.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 264960287 is about 16277.6007752986. The cubic root of 264960287 is about 642.2837413558.

The spelling of 264960287 in words is "two hundred sixty-four million, nine hundred sixty thousand, two hundred eighty-seven".