12897450 has 36 divisors (see below), whose sum is σ = 34652358. Its totient is φ = 3439200.

The previous prime is 12897449. The next prime is 12897473. The reversal of 12897450 is 5479821.

It can be written as a sum of positive squares in 3 ways, for example, as 12383361 + 514089 = 3519^2 + 717^2 .

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 17 ways as a sum of consecutive naturals, for example, 13881 + ... + 14780.

Almost surely, 2^12897450 is an apocalyptic number.

12897450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12897450 is an abundant number, since it is smaller than the sum of its proper divisors (21754908).

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

12897450 is a wasteful number, since it uses less digits than its factorization.

12897450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28679 (or 28671 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12897450 is about 3591.3019923142. The cubic root of 12897450 is about 234.5135554074.

The spelling of 12897450 in words is "twelve million, eight hundred ninety-seven thousand, four hundred fifty".