12598391 has 8 divisors (see below), whose sum is σ = 13790784. Its totient is φ = 11437920.

The previous prime is 12598381. The next prime is 12598393. The reversal of 12598391 is 19389521.

12598391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12598391 - 2¹⁰ = 12597367 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 (12598393) 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, 7151 + ... + 8736.

It is an arithmetic number, because the mean of its divisors is an integer number (1723848).

Almost surely, 2^12598391 is an apocalyptic number.

12598391 is a deficient number, since it is larger than the sum of its proper divisors (1192393).

12598391 is a wasteful number, since it uses less digits than its factorization.

12598391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961.

The product of its digits is 19440, while the sum is 38.

The square root of 12598391 is about 3549.4212204245. The cubic root of 12598391 is about 232.6867717246.

The spelling of 12598391 in words is "twelve million, five hundred ninety-eight thousand, three hundred ninety-one".