12945998 has 16 divisors (see below), whose sum is σ = 21210336. Its totient is φ = 5890080.

The previous prime is 12945983. The next prime is 12946001. The reversal of 12945998 is 89954921.

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 7 ways as a sum of consecutive naturals, for example, 1661 + ... + 5352.

It is an arithmetic number, because the mean of its divisors is an integer number (1325646).

Almost surely, 2^12945998 is an apocalyptic number.

12945998 is a deficient number, since it is larger than the sum of its proper divisors (8264338).

12945998 is a wasteful number, since it uses less digits than its factorization.

12945998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099.

The product of its digits is 233280, while the sum is 47.

The square root of 12945998 is about 3598.0547522238. The cubic root of 12945998 is about 234.8074354305.

The spelling of 12945998 in words is "twelve million, nine hundred forty-five thousand, nine hundred ninety-eight".