398237657413 has 8 divisors (see below), whose sum is σ = 398922001400. Its totient is φ = 397553427648.

The previous prime is 398237657393. The next prime is 398237657417. The reversal of 398237657413 is 314756732893.

It can be written as a sum of positive squares in 4 ways, for example, as 5601324964 + 392636332449 = 74842^2 + 626607^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 398237657413 - 2⁵ = 398237657381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398237657417) 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, 9830083 + ... + 9870511.

It is an arithmetic number, because the mean of its divisors is an integer number (49865250175).

Almost surely, 2^398237657413 is an apocalyptic number.

It is an amenable number.

398237657413 is a deficient number, since it is larger than the sum of its proper divisors (684343987).

398237657413 is a wasteful number, since it uses less digits than its factorization.

398237657413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57111.

The product of its digits is 22861440, while the sum is 58.

The spelling of 398237657413 in words is "three hundred ninety-eight billion, two hundred thirty-seven million, six hundred fifty-seven thousand, four hundred thirteen".