13998994 has 8 divisors (see below), whose sum is σ = 21486960. Its totient is φ = 6836676.

The previous prime is 13998937. The next prime is 13999003. The reversal of 13998994 is 49989931.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81304 + ... + 81475.

It is an arithmetic number, because the mean of its divisors is an integer number (2685870).

Almost surely, 2^13998994 is an apocalyptic number.

13998994 is a deficient number, since it is larger than the sum of its proper divisors (7487966).

13998994 is a wasteful number, since it uses less digits than its factorization.

13998994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162824.

The product of its digits is 629856, while the sum is 52.

The square root of 13998994 is about 3741.5229519542. The cubic root of 13998994 is about 241.0084534147.

The spelling of 13998994 in words is "thirteen million, nine hundred ninety-eight thousand, nine hundred ninety-four".