13999672 has 8 divisors (see below), whose sum is σ = 26249400. Its totient is φ = 6999832.

The previous prime is 13999651. The next prime is 13999673. The reversal of 13999672 is 27699931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13999672² = 391981632215168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13999673) by changing a digit.

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 as a sum of consecutive naturals, namely, 874972 + ... + 874987.

It is an arithmetic number, because the mean of its divisors is an integer number (3281175).

Almost surely, 2^13999672 is an apocalyptic number.

It is an amenable number.

13999672 is a deficient number, since it is larger than the sum of its proper divisors (12249728).

13999672 is a wasteful number, since it uses less digits than its factorization.

13999672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749965 (or 1749961 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 13999672 is about 3741.6135556735. The cubic root of 13999672 is about 241.0123441965.

The spelling of 13999672 in words is "thirteen million, nine hundred ninety-nine thousand, six hundred seventy-two".