12397065 has 16 divisors (see below), whose sum is σ = 20520000. Its totient is φ = 6383552.

The previous prime is 12397057. The next prime is 12397067. The reversal of 12397065 is 56079321.

It is a cyclic number.

It is not a de Polignac number, because 12397065 - 2³ = 12397057 is a prime.

It is a super-2 number, since 2×12397065² = 307374441228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12397067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13815 + ... + 14684.

It is an arithmetic number, because the mean of its divisors is an integer number (1282500).

Almost surely, 2^12397065 is an apocalyptic number.

12397065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12397065 is a deficient number, since it is larger than the sum of its proper divisors (8122935).

12397065 is a wasteful number, since it uses less digits than its factorization.

12397065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28536.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 12397065 is about 3520.9466056730. The cubic root of 12397065 is about 231.4406424017.

The spelling of 12397065 in words is "twelve million, three hundred ninety-seven thousand, sixty-five".