264632633 has 4 divisors (see below), whose sum is σ = 264722148. Its totient is φ = 264543120.

The previous prime is 264632611. The next prime is 264632639. The reversal of 264632633 is 336236462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336236462 = 2 ⋅168118231.

It can be written as a sum of positive squares in 2 ways, for example, as 151486864 + 113145769 = 12308^2 + 10637^2 .

It is a cyclic number.

It is not a de Polignac number, because 264632633 - 2⁸ = 264632377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264632593 and 264632602.

It is not an unprimeable number, because it can be changed into a prime (264632639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40166 + ... + 46287.

It is an arithmetic number, because the mean of its divisors is an integer number (66180537).

Almost surely, 2^264632633 is an apocalyptic number.

It is an amenable number.

264632633 is a deficient number, since it is larger than the sum of its proper divisors (89515).

264632633 is an equidigital number, since it uses as much as digits as its factorization.

264632633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89514.

The product of its digits is 93312, while the sum is 35.

The square root of 264632633 is about 16267.5330950947. The cubic root of 264632633 is about 642.0188794699.

The spelling of 264632633 in words is "two hundred sixty-four million, six hundred thirty-two thousand, six hundred thirty-three".