12937788 has 36 divisors (see below), whose sum is σ = 33761728. Its totient is φ = 4173120.

The previous prime is 12937781. The next prime is 12937789. The reversal of 12937788 is 88773921.

12937788 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12937781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4681 + ... + 6912.

Almost surely, 2^12937788 is an apocalyptic number.

12937788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12937788 is an abundant number, since it is smaller than the sum of its proper divisors (20823940).

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

12937788 is a wasteful number, since it uses less digits than its factorization.

12937788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11634 (or 11629 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12937788 is about 3596.9136770292. The cubic root of 12937788 is about 234.7577887701.

The spelling of 12937788 in words is "twelve million, nine hundred thirty-seven thousand, seven hundred eighty-eight".