394938975 has 12 divisors (see below), whose sum is σ = 652965896. Its totient is φ = 210634080.

The previous prime is 394938899. The next prime is 394939007. The reversal of 394938975 is 579839493.

It is not a de Polignac number, because 394938975 - 2⁹ = 394938463 is a prime.

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, 2632852 + ... + 2633001.

Almost surely, 2^394938975 is an apocalyptic number.

394938975 is a deficient number, since it is larger than the sum of its proper divisors (258026921).

394938975 is a wasteful number, since it uses less digits than its factorization.

394938975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265866 (or 5265861 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 57.

The square root of 394938975 is about 19873.0716045608. The cubic root of 394938975 is about 733.6856049715.

It can be divided in two parts, 3949 and 38975, that added together give a palindrome (42924).

The spelling of 394938975 in words is "three hundred ninety-four million, nine hundred thirty-eight thousand, nine hundred seventy-five".