12911898 has 16 divisors (see below), whose sum is σ = 25888896. Its totient is φ = 4293120.

The previous prime is 12911897. The next prime is 12911909. The reversal of 12911898 is 89811921.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12911897) 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, 90 + ... + 5082.

It is an arithmetic number, because the mean of its divisors is an integer number (1618056).

Almost surely, 2^12911898 is an apocalyptic number.

12911898 is an abundant number, since it is smaller than the sum of its proper divisors (12976998).

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

12911898 is a wasteful number, since it uses less digits than its factorization.

12911898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429.

The product of its digits is 10368, while the sum is 39.

The square root of 12911898 is about 3593.3129560337. The cubic root of 12911898 is about 234.6010917664.

The spelling of 12911898 in words is "twelve million, nine hundred eleven thousand, eight hundred ninety-eight".