397896 has 32 divisors (see below), whose sum is σ = 1015200. Its totient is φ = 129920.

The previous prime is 397867. The next prime is 397897. The reversal of 397896 is 698793.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (397897) 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, 1276 + ... + 1556.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2³⁹⁷⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507600).

397896 is an abundant number, since it is smaller than the sum of its proper divisors (617304).

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

397896 is a wasteful number, since it uses less digits than its factorization.

397896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 345 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 397896 is about 630.7899808970. The cubic root of 397896 is about 73.5512160967.

The spelling of 397896 in words is "three hundred ninety-seven thousand, eight hundred ninety-six".