12998990 has 8 divisors (see below), whose sum is σ = 23398200. Its totient is φ = 5199592.

The previous prime is 12998987. The next prime is 12999043. The reversal of 12998990 is 9989921.

12998990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649940 + ... + 649959.

It is an arithmetic number, because the mean of its divisors is an integer number (2924775).

Almost surely, 2^12998990 is an apocalyptic number.

12998990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12998990 is a deficient number, since it is larger than the sum of its proper divisors (10399210).

12998990 is a wasteful number, since it uses less digits than its factorization.

12998990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299906.

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 12998990 is about 3605.4112109439. The cubic root of 12998990 is about 235.1273792604.

The spelling of 12998990 in words is "twelve million, nine hundred ninety-eight thousand, nine hundred ninety".