397222 has 16 divisors (see below), whose sum is σ = 721440. Its totient is φ = 160128.

The previous prime is 397217. The next prime is 397223. The reversal of 397222 is 222793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397223) by changing a digit.

397222 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 7 ways as a sum of consecutive naturals, for example, 597 + ... + 1072.

It is an arithmetic number, because the mean of its divisors is an integer number (45090).

2³⁹⁷²²² is an apocalyptic number.

397222 is a deficient number, since it is larger than the sum of its proper divisors (324218).

397222 is a wasteful number, since it uses less digits than its factorization.

397222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its digits is 1512, while the sum is 25.

The square root of 397222 is about 630.2555037443. The cubic root of 397222 is about 73.5096629127.

The spelling of 397222 in words is "three hundred ninety-seven thousand, two hundred twenty-two".