397003933 has 4 divisors (see below), whose sum is σ = 397652188. Its totient is φ = 396355680.

The previous prime is 397003931. The next prime is 397003967. The reversal of 397003933 is 339300793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192571129 + 204432804 = 13877^2 + 14298^2 .

It is a cyclic number.

It is not a de Polignac number, because 397003933 - 2¹ = 397003931 is a prime.

It is a super-2 number, since 2×397003933² = 315224245634936978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397003892 and 397003901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397003931) 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 3 ways as a sum of consecutive naturals, for example, 323208 + ... + 324433.

It is an arithmetic number, because the mean of its divisors is an integer number (99413047).

Almost surely, 2^397003933 is an apocalyptic number.

It is an amenable number.

397003933 is a deficient number, since it is larger than the sum of its proper divisors (648255).

397003933 is an equidigital number, since it uses as much as digits as its factorization.

397003933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648254.

The product of its (nonzero) digits is 45927, while the sum is 37.

The square root of 397003933 is about 19924.9575407327. The cubic root of 397003933 is about 734.9620866803.

The spelling of 397003933 in words is "three hundred ninety-seven million, three thousand, nine hundred thirty-three".