12898660 has 12 divisors (see below), whose sum is σ = 27087228. Its totient is φ = 5159456.

The previous prime is 12898657. The next prime is 12898673. The reversal of 12898660 is 6689821.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 6180196 = 2592^2 + 2486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322447 + ... + 322486.

It is an arithmetic number, because the mean of its divisors is an integer number (2257269).

Almost surely, 2^12898660 is an apocalyptic number.

12898660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12898660 is an abundant number, since it is smaller than the sum of its proper divisors (14188568).

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

12898660 is a wasteful number, since it uses less digits than its factorization.

12898660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644942 (or 644940 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 12898660 is about 3591.4704509435. The cubic root of 12898660 is about 234.5208889638.

The spelling of 12898660 in words is "twelve million, eight hundred ninety-eight thousand, six hundred sixty".