12397390 has 8 divisors (see below), whose sum is σ = 22315320. Its totient is φ = 4958952.

The previous prime is 12397379. The next prime is 12397397. The reversal of 12397390 is 9379321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619860 + ... + 619879.

It is an arithmetic number, because the mean of its divisors is an integer number (2789415).

Almost surely, 2^12397390 is an apocalyptic number.

12397390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12397390 is a deficient number, since it is larger than the sum of its proper divisors (9917930).

12397390 is a wasteful number, since it uses less digits than its factorization.

12397390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239746.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 12397390 is about 3520.9927577318. The cubic root of 12397390 is about 231.4426648576.

The spelling of 12397390 in words is "twelve million, three hundred ninety-seven thousand, three hundred ninety".