396861612 has 48 divisors (see below), whose sum is σ = 1076248320. Its totient is φ = 111465792.

The previous prime is 396861611. The next prime is 396861613. The reversal of 396861612 is 216168693.

It is an interprime number because it is at equal distance from previous prime (396861611) and next prime (396861613).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (396861611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35083 + ... + 44994.

It is an arithmetic number, because the mean of its divisors is an integer number (22421840).

Almost surely, 2^396861612 is an apocalyptic number.

It is an amenable number.

396861612 is an abundant number, since it is smaller than the sum of its proper divisors (679386708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396861612 is a wasteful number, since it uses less digits than its factorization.

396861612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80150 (or 80148 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 396861612 is about 19921.3857951700. The cubic root of 396861612 is about 734.8742512440.

The spelling of 396861612 in words is "three hundred ninety-six million, eight hundred sixty-one thousand, six hundred twelve".