264804691 has 12 divisors (see below), whose sum is σ = 286307784. Its totient is φ = 244735200.

The previous prime is 264804679. The next prime is 264804751. The reversal of 264804691 is 196408462.

It is not a de Polignac number, because 264804691 - 2⁹ = 264804179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264804641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5856 + ... + 23746.

It is an arithmetic number, because the mean of its divisors is an integer number (23858982).

Almost surely, 2^264804691 is an apocalyptic number.

264804691 is a deficient number, since it is larger than the sum of its proper divisors (21503093).

264804691 is a wasteful number, since it uses less digits than its factorization.

264804691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17970 (or 17951 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 264804691 is about 16272.8206221294. The cubic root of 264804691 is about 642.1579912533.

The spelling of 264804691 in words is "two hundred sixty-four million, eight hundred four thousand, six hundred ninety-one".