397859183 has 24 divisors (see below), whose sum is σ = 434522880. Its totient is φ = 364038480.

The previous prime is 397859131. The next prime is 397859197. The reversal of 397859183 is 381958793.

It is a happy number.

It is not a de Polignac number, because 397859183 - 2⁸ = 397858927 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397259183) 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, 2222588 + ... + 2222766.

It is an arithmetic number, because the mean of its divisors is an integer number (18105120).

Almost surely, 2^397859183 is an apocalyptic number.

397859183 is a deficient number, since it is larger than the sum of its proper divisors (36663697).

397859183 is a wasteful number, since it uses less digits than its factorization.

397859183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 376 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The square root of 397859183 is about 19946.4077718270. The cubic root of 397859183 is about 735.4894748154.

The spelling of 397859183 in words is "three hundred ninety-seven million, eight hundred fifty-nine thousand, one hundred eighty-three".