12923988 has 96 divisors (see below), whose sum is σ = 38320128. Its totient is φ = 3292800.

The previous prime is 12923987. The next prime is 12924001. The reversal of 12923988 is 88932921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65506 + ... + 65702.

It is an arithmetic number, because the mean of its divisors is an integer number (399168).

Almost surely, 2^12923988 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 12923988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19160064).

12923988 is an abundant number, since it is smaller than the sum of its proper divisors (25396140).

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

12923988 is a wasteful number, since it uses less digits than its factorization.

12923988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 291 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 12923988 is about 3594.9948539602. The cubic root of 12923988 is about 234.6742914978.

The spelling of 12923988 in words is "twelve million, nine hundred twenty-three thousand, nine hundred eighty-eight".