396687694 has 32 divisors (see below), whose sum is σ = 672073920. Its totient is φ = 174327552.

The previous prime is 396687667. The next prime is 396687703. The reversal of 396687694 is 496786693.

It is a super-2 number, since 2×396687694² = 314722253142075272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51439 + ... + 58645.

It is an arithmetic number, because the mean of its divisors is an integer number (21002310).

Almost surely, 2^396687694 is an apocalyptic number.

396687694 is a deficient number, since it is larger than the sum of its proper divisors (275386226).

396687694 is a wasteful number, since it uses less digits than its factorization.

396687694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324.

The product of its digits is 11757312, while the sum is 58.

The square root of 396687694 is about 19917.0202088565. The cubic root of 396687694 is about 734.7668867534.

The spelling of 396687694 in words is "three hundred ninety-six million, six hundred eighty-seven thousand, six hundred ninety-four".