264917631 has 8 divisors (see below), whose sum is σ = 385334784. Its totient is φ = 160556120.

The previous prime is 264917617. The next prime is 264917641. The reversal of 264917631 is 136719462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264917631 - 2²² = 260723327 is a prime.

It is a super-2 number, since 2×264917631² = 140362702429304322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264917631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264917641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013871 + ... + 4013936.

It is an arithmetic number, because the mean of its divisors is an integer number (48166848).

Almost surely, 2^264917631 is an apocalyptic number.

264917631 is a deficient number, since it is larger than the sum of its proper divisors (120417153).

264917631 is a wasteful number, since it uses less digits than its factorization.

264917631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8027821.

The product of its digits is 54432, while the sum is 39.

The square root of 264917631 is about 16276.2904557519. The cubic root of 264917631 is about 642.2492723844.

The spelling of 264917631 in words is "two hundred sixty-four million, nine hundred seventeen thousand, six hundred thirty-one".