12917900 has 36 divisors (see below), whose sum is σ = 28331520. Its totient is φ = 5112000.

The previous prime is 12917833. The next prime is 12917939. The reversal of 12917900 is 971921.

12917900 = 148² + 149² + ... + 347².

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9461 + ... + 10739.

Almost surely, 2^12917900 is an apocalyptic number.

12917900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12917900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14165760).

12917900 is an abundant number, since it is smaller than the sum of its proper divisors (15413620).

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

12917900 is a wasteful number, since it uses less digits than its factorization.

12917900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 12917900 is about 3594.1480214371. The cubic root of 12917900 is about 234.6374369944.

The spelling of 12917900 in words is "twelve million, nine hundred seventeen thousand, nine hundred".