397038133 has 4 divisors (see below), whose sum is σ = 397216768. Its totient is φ = 396859500.

The previous prime is 397038127. The next prime is 397038143. The reversal of 397038133 is 331830793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397038133 is a prime.

It is a super-2 number, since 2×397038133² = 315278558112251378, 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 = 397038092 and 397038101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397038113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85941 + ... + 90442.

It is an arithmetic number, because the mean of its divisors is an integer number (99304192).

Almost surely, 2^397038133 is an apocalyptic number.

It is an amenable number.

397038133 is a deficient number, since it is larger than the sum of its proper divisors (178635).

397038133 is a wasteful number, since it uses less digits than its factorization.

397038133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178634.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 397038133 is about 19925.8157423981. The cubic root of 397038133 is about 734.9831905700.

The spelling of 397038133 in words is "three hundred ninety-seven million, thirty-eight thousand, one hundred thirty-three".