12972398 has 8 divisors (see below), whose sum is σ = 19474608. Its totient is φ = 6480864.

The previous prime is 12972371. The next prime is 12972457. The reversal of 12972398 is 89327921.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015 + ... + 5477.

It is an arithmetic number, because the mean of its divisors is an integer number (2434326).

Almost surely, 2^12972398 is an apocalyptic number.

12972398 is a deficient number, since it is larger than the sum of its proper divisors (6502210).

12972398 is a wasteful number, since it uses less digits than its factorization.

12972398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338.

The product of its digits is 54432, while the sum is 41.

The square root of 12972398 is about 3601.7215328229. The cubic root of 12972398 is about 234.9669366491.

It can be divided in two parts, 129 and 72398, that added together give a palindrome (72527).

The spelling of 12972398 in words is "twelve million, nine hundred seventy-two thousand, three hundred ninety-eight".