397212 has 24 divisors (see below), whose sum is σ = 940800. Its totient is φ = 130416.

The previous prime is 397211. The next prime is 397217. The reversal of 397212 is 212793.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397211) 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, 739 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (39200).

2³⁹⁷²¹² is an apocalyptic number.

It is an amenable number.

397212 is an abundant number, since it is smaller than the sum of its proper divisors (543588).

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

397212 is a wasteful number, since it uses less digits than its factorization.

397212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

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

The square root of 397212 is about 630.2475704039. The cubic root of 397212 is about 73.5090460429.

The spelling of 397212 in words is "three hundred ninety-seven thousand, two hundred twelve".