264628831 has 4 divisors (see below), whose sum is σ = 264662200. Its totient is φ = 264595464.

The previous prime is 264628829. The next prime is 264628849. The reversal of 264628831 is 138826462.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 264628831 - 2¹ = 264628829 is a prime.

It is a super-2 number, since 2×264628831² = 140056836392853122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264628811) 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, 2785 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (66165550).

Almost surely, 2^264628831 is an apocalyptic number.

264628831 is a deficient number, since it is larger than the sum of its proper divisors (33369).

264628831 is a wasteful number, since it uses less digits than its factorization.

264628831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33368.

The product of its digits is 110592, while the sum is 40.

The square root of 264628831 is about 16267.4162361452. The cubic root of 264628831 is about 642.0158048082.

The spelling of 264628831 in words is "two hundred sixty-four million, six hundred twenty-eight thousand, eight hundred thirty-one".