397000321 has 8 divisors (see below), whose sum is σ = 404121600. Its totient is φ = 389892240.

The previous prime is 397000313. The next prime is 397000333. The reversal of 397000321 is 123000793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397000321 - 2³ = 397000313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397000361) 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, 72831 + ... + 78091.

It is an arithmetic number, because the mean of its divisors is an integer number (50515200).

Almost surely, 2^397000321 is an apocalyptic number.

It is an amenable number.

397000321 is a deficient number, since it is larger than the sum of its proper divisors (7121279).

397000321 is a wasteful number, since it uses less digits than its factorization.

397000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6599.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 397000321 is about 19924.8669004337. The cubic root of 397000321 is about 734.9598577426.

The spelling of 397000321 in words is "three hundred ninety-seven million, three hundred twenty-one", and thus it is an aban number.