12399597 has 36 divisors (see below), whose sum is σ = 21530496. Its totient is φ = 6849360.

The previous prime is 12399593. The next prime is 12399637. The reversal of 12399597 is 79599321.

It is a happy number.

It is not a de Polignac number, because 12399597 - 2² = 12399593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12399593) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13218 + ... + 14124.

Almost surely, 2^12399597 is an apocalyptic number.

It is an amenable number.

12399597 is a deficient number, since it is larger than the sum of its proper divisors (9130899).

12399597 is a wasteful number, since it uses less digits than its factorization.

12399597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 948 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 12399597 is about 3521.3061497121. The cubic root of 12399597 is about 231.4563979539.

It can be divided in two parts, 12399 and 597, that added together give a square (12996 = 114²).

The spelling of 12399597 in words is "twelve million, three hundred ninety-nine thousand, five hundred ninety-seven".