397273670 has 8 divisors (see below), whose sum is σ = 715092624. Its totient is φ = 158909464.

The previous prime is 397273633. The next prime is 397273693. The reversal of 397273670 is 76372793.

397273670 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19863674 + ... + 19863693.

It is an arithmetic number, because the mean of its divisors is an integer number (89386578).

Almost surely, 2^397273670 is an apocalyptic number.

397273670 is a deficient number, since it is larger than the sum of its proper divisors (317818954).

397273670 is a wasteful number, since it uses less digits than its factorization.

397273670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39727374.

The product of its (nonzero) digits is 333396, while the sum is 44.

The square root of 397273670 is about 19931.7252138394. The cubic root of 397273670 is about 735.1285011416.

The spelling of 397273670 in words is "three hundred ninety-seven million, two hundred seventy-three thousand, six hundred seventy".