397759137 has 8 divisors (see below), whose sum is σ = 530569536. Its totient is φ = 265060752.

The previous prime is 397759123. The next prime is 397759147. The reversal of 397759137 is 731957793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397759137 - 2⁴ = 397759121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397759137.

It is not an unprimeable number, because it can be changed into a prime (397759147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19333 + ... + 34194.

It is an arithmetic number, because the mean of its divisors is an integer number (66321192).

Almost surely, 2^397759137 is an apocalyptic number.

It is an amenable number.

397759137 is a deficient number, since it is larger than the sum of its proper divisors (132810399).

397759137 is a wasteful number, since it uses less digits than its factorization.

397759137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56007.

The product of its digits is 1250235, while the sum is 51.

The square root of 397759137 is about 19943.8997440320. The cubic root of 397759137 is about 735.4278207162.

The spelling of 397759137 in words is "three hundred ninety-seven million, seven hundred fifty-nine thousand, one hundred thirty-seven".