397116 has 24 divisors (see below), whose sum is σ = 1029840. Its totient is φ = 132336.

The previous prime is 397099. The next prime is 397127. The reversal of 397116 is 611793.

397116 = 26² + 27² + ... + 106².

It is a super-2 number, since 2×397116² = 315402234912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 397116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731 + ... + 1946.

It is an arithmetic number, because the mean of its divisors is an integer number (42910).

2³⁹⁷¹¹⁶ is an apocalyptic number.

397116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

397116 is an abundant number, since it is smaller than the sum of its proper divisors (632724).

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

397116 is a wasteful number, since it uses less digits than its factorization.

397116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3682 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 397116 is about 630.1714052542. The cubic root of 397116 is about 73.5031235657.

It can be divided in two parts, 3971 and 16, that multiplied together give a palindrome (63536).

The spelling of 397116 in words is "three hundred ninety-seven thousand, one hundred sixteen".