397122 has 24 divisors (see below), whose sum is σ = 874608. Its totient is φ = 120120.

The previous prime is 397099. The next prime is 397127. The reversal of 397122 is 221793.

It is a junction number, because it is equal to n+sod(n) for n = 397092 and 397101.

It is not an unprimeable number, because it can be changed into a prime (397127) by changing a digit.

397122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (36442).

2³⁹⁷¹²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437304).

397122 is an abundant number, since it is smaller than the sum of its proper divisors (477486).

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

397122 is a wasteful number, since it uses less digits than its factorization.

397122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 563 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 397122 is about 630.1761658457. The cubic root of 397122 is about 73.5034937485.

It can be divided in two parts, 3971 and 22, that added together give a palindrome (3993).

The spelling of 397122 in words is "three hundred ninety-seven thousand, one hundred twenty-two".