397272013 has 8 divisors (see below), whose sum is σ = 400015616. Its totient is φ = 394534800.

The previous prime is 397271999. The next prime is 397272053. The reversal of 397272013 is 310272793.

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 397272013 - 2⁵ = 397271981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397272013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397272053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221920 + ... + 223702.

It is an arithmetic number, because the mean of its divisors is an integer number (50001952).

Almost surely, 2^397272013 is an apocalyptic number.

It is an amenable number.

397272013 is a deficient number, since it is larger than the sum of its proper divisors (2743603).

397272013 is a wasteful number, since it uses less digits than its factorization.

397272013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 397272013 is about 19931.6836468975. The cubic root of 397272013 is about 735.1274790841.

The spelling of 397272013 in words is "three hundred ninety-seven million, two hundred seventy-two thousand, thirteen".