13999036 has 6 divisors (see below), whose sum is σ = 24498320. Its totient is φ = 6999516.

The previous prime is 13999009. The next prime is 13999057. The reversal of 13999036 is 63099931.

It is a self number, because there is not a number n which added to its sum of digits gives 13999036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749876 + ... + 1749883.

Almost surely, 2^13999036 is an apocalyptic number.

It is an amenable number.

13999036 is a deficient number, since it is larger than the sum of its proper divisors (10499284).

13999036 is a wasteful number, since it uses less digits than its factorization.

13999036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499763 (or 3499761 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 13999036 is about 3741.5285646377. The cubic root of 13999036 is about 241.0086944402.

The spelling of 13999036 in words is "thirteen million, nine hundred ninety-nine thousand, thirty-six".