397996846 has 16 divisors (see below), whose sum is σ = 656599104. Its totient is φ = 179781984.

The previous prime is 397996813. The next prime is 397996849. The reversal of 397996846 is 648699793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397996849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161625 + ... + 164068.

It is an arithmetic number, because the mean of its divisors is an integer number (41037444).

Almost surely, 2^397996846 is an apocalyptic number.

397996846 is a deficient number, since it is larger than the sum of its proper divisors (258602258).

397996846 is a wasteful number, since it uses less digits than its factorization.

397996846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325755.

The product of its digits is 17635968, while the sum is 61.

The square root of 397996846 is about 19949.8582952361. The cubic root of 397996846 is about 735.5742937802.

The spelling of 397996846 in words is "three hundred ninety-seven million, nine hundred ninety-six thousand, eight hundred forty-six".