264653793 has 18 divisors (see below), whose sum is σ = 403461474. Its totient is φ = 167147712.

The previous prime is 264653791. The next prime is 264653867. The reversal of 264653793 is 397356462.

264653793 is a `hidden beast` number, since 26 + 4 + 6 + 537 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 185586129 + 79067664 = 13623^2 + 8892^2 .

It is not a de Polignac number, because 264653793 - 2¹ = 264653791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264653791) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 37480 + ... + 43977.

Almost surely, 2^264653793 is an apocalyptic number.

It is an amenable number.

264653793 is a deficient number, since it is larger than the sum of its proper divisors (138807681).

264653793 is a wasteful number, since it uses less digits than its factorization.

264653793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81501 (or 81479 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 264653793 is about 16268.1834572886. The cubic root of 264653793 is about 642.0359909365.

The spelling of 264653793 in words is "two hundred sixty-four million, six hundred fifty-three thousand, seven hundred ninety-three".