393384925 has 12 divisors (see below), whose sum is σ = 500982196. Its totient is φ = 306201600.

The previous prime is 393384923. The next prime is 393384997. The reversal of 393384925 is 529483393.

It can be written as a sum of positive squares in 6 ways, for example, as 32878756 + 360506169 = 5734^2 + 18987^2 .

It is not a de Polignac number, because 393384925 - 2¹ = 393384923 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 (393384923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211716 + ... + 213565.

Almost surely, 2^393384925 is an apocalyptic number.

It is an amenable number.

393384925 is a deficient number, since it is larger than the sum of its proper divisors (107597271).

393384925 is a wasteful number, since it uses less digits than its factorization.

393384925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425328 (or 425323 counting only the distinct ones).

The product of its digits is 699840, while the sum is 46.

The square root of 393384925 is about 19833.9336743874. The cubic root of 393384925 is about 732.7220106168.

The spelling of 393384925 in words is "three hundred ninety-three million, three hundred eighty-four thousand, nine hundred twenty-five".