394475697 has 32 divisors (see below), whose sum is σ = 728616960. Its totient is φ = 204921360.

The previous prime is 394475693. The next prime is 394475743. The reversal of 394475697 is 796574493.

It is a happy number.

394475697 is a `hidden beast` number, since 39 + 4 + 47 + 569 + 7 = 666.

It is not a de Polignac number, because 394475697 - 2² = 394475693 is a prime.

It is a super-2 number, since 2×394475697² = 311222151047271618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394475693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92793 + ... + 96950.

It is an arithmetic number, because the mean of its divisors is an integer number (22769280).

Almost surely, 2^394475697 is an apocalyptic number.

It is an amenable number.

394475697 is a deficient number, since it is larger than the sum of its proper divisors (334141263).

394475697 is a wasteful number, since it uses less digits than its factorization.

394475697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189770 (or 189764 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 394475697 is about 19861.4122609647. The cubic root of 394475697 is about 733.3986126232.

The spelling of 394475697 in words is "three hundred ninety-four million, four hundred seventy-five thousand, six hundred ninety-seven".