13999073 has 16 divisors (see below), whose sum is σ = 16046592. Its totient is φ = 12096000.

The previous prime is 13999057. The next prime is 13999079. The reversal of 13999073 is 37099931.

It is a cyclic number.

It is not a de Polignac number, because 13999073 - 2⁴ = 13999057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13999073.

It is not an unprimeable number, because it can be changed into a prime (13999079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20465 + ... + 21137.

It is an arithmetic number, because the mean of its divisors is an integer number (1002912).

Almost surely, 2^13999073 is an apocalyptic number.

It is an amenable number.

13999073 is a deficient number, since it is larger than the sum of its proper divisors (2047519).

13999073 is a wasteful number, since it uses less digits than its factorization.

13999073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 13999073 is about 3741.5335091377. The cubic root of 13999073 is about 241.0089067718.

The spelling of 13999073 in words is "thirteen million, nine hundred ninety-nine thousand, seventy-three".