12397570 has 16 divisors (see below), whose sum is σ = 22547448. Its totient is φ = 4907520.

The previous prime is 12397547. The next prime is 12397571. The reversal of 12397570 is 7579321.

It can be written as a sum of positive squares in 4 ways, for example, as 10817521 + 1580049 = 3289^2 + 1257^2 .

It is not an unprimeable number, because it can be changed into a prime (12397571) 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, 5421 + ... + 7360.

Almost surely, 2^12397570 is an apocalyptic number.

12397570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12397570 is a deficient number, since it is larger than the sum of its proper divisors (10149878).

12397570 is a wasteful number, since it uses less digits than its factorization.

12397570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 12397570 is about 3521.0183186118. The cubic root of 12397570 is about 231.4437849718.

The spelling of 12397570 in words is "twelve million, three hundred ninety-seven thousand, five hundred seventy".