397854933 has 16 divisors (see below), whose sum is σ = 606533760. Its totient is φ = 227241216.

The previous prime is 397854931. The next prime is 397854949. The reversal of 397854933 is 339458793.

It is not a de Polignac number, because 397854933 - 2¹ = 397854931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397854931) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 88033 + ... + 92441.

It is an arithmetic number, because the mean of its divisors is an integer number (37908360).

Almost surely, 2^397854933 is an apocalyptic number.

It is an amenable number.

397854933 is a deficient number, since it is larger than the sum of its proper divisors (208678827).

397854933 is a wasteful number, since it uses less digits than its factorization.

397854933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716.

The product of its digits is 2449440, while the sum is 51.

The square root of 397854933 is about 19946.3012360688. The cubic root of 397854933 is about 735.4868559312.

The spelling of 397854933 in words is "three hundred ninety-seven million, eight hundred fifty-four thousand, nine hundred thirty-three".