12888997 has 8 divisors (see below), whose sum is σ = 14087232. Its totient is φ = 11695200.

The previous prime is 12888989. The next prime is 12889001. The reversal of 12888997 is 79988821.

12888997 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12888997 - 2³ = 12888989 is a prime.

It is a super-2 number, since 2×12888997² = 332252487332018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9097 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (1760904).

Almost surely, 2^12888997 is an apocalyptic number.

It is an amenable number.

12888997 is a deficient number, since it is larger than the sum of its proper divisors (1198235).

12888997 is a wasteful number, since it uses less digits than its factorization.

12888997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its digits is 580608, while the sum is 52.

The square root of 12888997 is about 3590.1249281884. The cubic root of 12888997 is about 234.4623107475.

The spelling of 12888997 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred ninety-seven".