397182093 has 24 divisors (see below), whose sum is σ = 672043680. Its totient is φ = 206327520.

The previous prime is 397182091. The next prime is 397182109. The reversal of 397182093 is 390281793.

It is not a de Polignac number, because 397182093 - 2¹ = 397182091 is a prime.

It is a super-2 number, since 2×397182093² = 315507229999721298, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397182091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121198 + ... + 124431.

It is an arithmetic number, because the mean of its divisors is an integer number (28001820).

Almost surely, 2^397182093 is an apocalyptic number.

397182093 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

397182093 is a deficient number, since it is larger than the sum of its proper divisors (274861587).

397182093 is a wasteful number, since it uses less digits than its factorization.

397182093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245657 (or 245650 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 397182093 is about 19929.4278141647. The cubic root of 397182093 is about 735.0720110851.

The spelling of 397182093 in words is "three hundred ninety-seven million, one hundred eighty-two thousand, ninety-three".