397202943 has 16 divisors (see below), whose sum is σ = 563120640. Its totient is φ = 248174976.

The previous prime is 397202929. The next prime is 397202951. The reversal of 397202943 is 349202793.

It is not a de Polignac number, because 397202943 - 2¹⁶ = 397137407 is a prime.

It is a super-2 number, since 2×397202943² = 315540355855722498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397212943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4105 + ... + 28482.

It is an arithmetic number, because the mean of its divisors is an integer number (35195040).

Almost surely, 2^397202943 is an apocalyptic number.

397202943 is a deficient number, since it is larger than the sum of its proper divisors (165917697).

397202943 is a wasteful number, since it uses less digits than its factorization.

397202943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32846.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 397202943 is about 19929.9509031006. The cubic root of 397202943 is about 735.0848733495.

The spelling of 397202943 in words is "three hundred ninety-seven million, two hundred two thousand, nine hundred forty-three".