396411986 has 8 divisors (see below), whose sum is σ = 594805680. Its totient is φ = 198143428.

The previous prime is 396411979. The next prime is 396411989. The reversal of 396411986 is 689114693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 396411986.

It is not an unprimeable number, because it can be changed into a prime (396411989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22916 + ... + 36303.

It is an arithmetic number, because the mean of its divisors is an integer number (74350710).

Almost surely, 2^396411986 is an apocalyptic number.

396411986 is a deficient number, since it is larger than the sum of its proper divisors (198393694).

396411986 is a wasteful number, since it uses less digits than its factorization.

396411986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62568.

The product of its digits is 279936, while the sum is 47.

The square root of 396411986 is about 19910.0975889120. The cubic root of 396411986 is about 734.5966200986.

The spelling of 396411986 in words is "three hundred ninety-six million, four hundred eleven thousand, nine hundred eighty-six".