264408653 has 4 divisors (see below), whose sum is σ = 264443808. Its totient is φ = 264373500.

The previous prime is 264408611. The next prime is 264408659. The reversal of 264408653 is 356804462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 264408653 - 2⁶ = 264408589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264408659) 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, 1223 + ... + 23028.

It is an arithmetic number, because the mean of its divisors is an integer number (66110952).

Almost surely, 2^264408653 is an apocalyptic number.

It is an amenable number.

264408653 is a deficient number, since it is larger than the sum of its proper divisors (35155).

264408653 is a wasteful number, since it uses less digits than its factorization.

264408653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35154.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 264408653 is about 16260.6473733366. The cubic root of 264408653 is about 641.8376975099.

The spelling of 264408653 in words is "two hundred sixty-four million, four hundred eight thousand, six hundred fifty-three".