12537976 has 64 divisors (see below), whose sum is σ = 28188000. Its totient is φ = 5178880.

The previous prime is 12537971. The next prime is 12537977. The reversal of 12537976 is 67973521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537971) 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 15 ways as a sum of consecutive naturals, for example, 432330 + ... + 432358.

Almost surely, 2^12537976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12537976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14094000).

12537976 is an abundant number, since it is smaller than the sum of its proper divisors (15650024).

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

12537976 is a wasteful number, since it uses less digits than its factorization.

12537976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 59 counting only the distinct ones).

The product of its digits is 79380, while the sum is 40.

The square root of 12537976 is about 3540.9004504504. The cubic root of 12537976 is about 232.3142293764.

It can be divided in two parts, 1253 and 7976, that added together give a palindrome (9229).

The spelling of 12537976 in words is "twelve million, five hundred thirty-seven thousand, nine hundred seventy-six".