12898605 has 16 divisors (see below), whose sum is σ = 20712384. Its totient is φ = 6854400.

The previous prime is 12898553. The next prime is 12898619. The reversal of 12898605 is 50689821.

12898605 = 838² + 839² + ... + 855².

It is not a de Polignac number, because 12898605 - 2⁶ = 12898541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (1294524).

Almost surely, 2^12898605 is an apocalyptic number.

12898605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12898605 is a deficient number, since it is larger than the sum of its proper divisors (7813779).

12898605 is a wasteful number, since it uses less digits than its factorization.

12898605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12898605 is about 3591.4627939045. The cubic root of 12898605 is about 234.5205556302.

The spelling of 12898605 in words is "twelve million, eight hundred ninety-eight thousand, six hundred five".