394694725 has 12 divisors (see below), whose sum is σ = 502650244. Its totient is φ = 307221120.

The previous prime is 394694717. The next prime is 394694753. The reversal of 394694725 is 527496493.

It can be written as a sum of positive squares in 6 ways, for example, as 23824161 + 370870564 = 4881^2 + 19258^2 .

It is not a de Polignac number, because 394694725 - 2³ = 394694717 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212424 + ... + 214273.

Almost surely, 2^394694725 is an apocalyptic number.

It is an amenable number.

394694725 is a deficient number, since it is larger than the sum of its proper divisors (107955519).

394694725 is a wasteful number, since it uses less digits than its factorization.

394694725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426744 (or 426739 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The square root of 394694725 is about 19866.9254037961. The cubic root of 394694725 is about 733.5343244989.

The spelling of 394694725 in words is "three hundred ninety-four million, six hundred ninety-four thousand, seven hundred twenty-five".