397844 has 12 divisors (see below), whose sum is σ = 705600. Its totient is φ = 196248.

The previous prime is 397829. The next prime is 397849. The reversal of 397844 is 448793.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397844.

It is not an unprimeable number, because it can be changed into a prime (397849) 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, 314 + ... + 945.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2³⁹⁷⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

397844 is a deficient number, since it is larger than the sum of its proper divisors (307756).

397844 is a wasteful number, since it uses less digits than its factorization.

397844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1340 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 397844 is about 630.7487613939. The cubic root of 397844 is about 73.5480118843.

The spelling of 397844 in words is "three hundred ninety-seven thousand, eight hundred forty-four".