393252697 has 4 divisors (see below), whose sum is σ = 393398500. Its totient is φ = 393106896.

The previous prime is 393252683. The next prime is 393252719. The reversal of 393252697 is 796252393.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 251666496 + 141586201 = 15864^2 + 11899^2 .

It is a cyclic number.

It is not a de Polignac number, because 393252697 - 2⁷ = 393252569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393252617) 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, 68778 + ... + 74275.

It is an arithmetic number, because the mean of its divisors is an integer number (98349625).

Almost surely, 2^393252697 is an apocalyptic number.

It is an amenable number.

393252697 is a deficient number, since it is larger than the sum of its proper divisors (145803).

393252697 is a wasteful number, since it uses less digits than its factorization.

393252697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145802.

The product of its digits is 612360, while the sum is 46.

The square root of 393252697 is about 19830.6000161367. The cubic root of 393252697 is about 732.6399050952.

The spelling of 393252697 in words is "three hundred ninety-three million, two hundred fifty-two thousand, six hundred ninety-seven".