396939694 has 16 divisors (see below), whose sum is σ = 600930000. Its totient is φ = 196634880.

The previous prime is 396939679. The next prime is 396939703. The reversal of 396939694 is 496939693.

It is a super-2 number, since 2×396939694² = 315122241345627272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317182 + ... + 318430.

It is an arithmetic number, because the mean of its divisors is an integer number (37558125).

Almost surely, 2^396939694 is an apocalyptic number.

396939694 is a deficient number, since it is larger than the sum of its proper divisors (203990306).

396939694 is a wasteful number, since it uses less digits than its factorization.

396939694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its digits is 8503056, while the sum is 58.

The square root of 396939694 is about 19923.3454520068. The cubic root of 396939694 is about 734.9224432642.

Subtracting 396939694 from its reverse (496939693), we obtain a palindrome (99999999).

The spelling of 396939694 in words is "three hundred ninety-six million, nine hundred thirty-nine thousand, six hundred ninety-four".