264208393 has 4 divisors (see below), whose sum is σ = 265393408. Its totient is φ = 263023380.

The previous prime is 264208369. The next prime is 264208409. The reversal of 264208393 is 393802462.

264208393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 264208393 - 2⁵ = 264208361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264208333) 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, 592173 + ... + 592618.

It is an arithmetic number, because the mean of its divisors is an integer number (66348352).

Almost surely, 2^264208393 is an apocalyptic number.

It is an amenable number.

264208393 is a deficient number, since it is larger than the sum of its proper divisors (1185015).

264208393 is a wasteful number, since it uses less digits than its factorization.

264208393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185014.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 264208393 is about 16254.4883955171. The cubic root of 264208393 is about 641.6756164791.

The spelling of 264208393 in words is "two hundred sixty-four million, two hundred eight thousand, three hundred ninety-three".