12397752 has 32 divisors (see below), whose sum is σ = 34438800. Its totient is φ = 4132512.

The previous prime is 12397739. The next prime is 12397753. The reversal of 12397752 is 25779321.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28483 + ... + 28914.

Almost surely, 2^12397752 is an apocalyptic number.

12397752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12397752 is an abundant number, since it is smaller than the sum of its proper divisors (22041048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12397752 is a wasteful number, since it uses less digits than its factorization.

12397752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57412 (or 57402 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 12397752 is about 3521.0441633129. The cubic root of 12397752 is about 231.4449175207. Note that the first 3 decimals are identical.

The spelling of 12397752 in words is "twelve million, three hundred ninety-seven thousand, seven hundred fifty-two".