13993033 has 4 divisors (see below), whose sum is σ = 14170240. Its totient is φ = 13815828.

The previous prime is 13993003. The next prime is 13993069. The reversal of 13993033 is 33039931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13993033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13992986 and 13993004.

It is not an unprimeable number, because it can be changed into a prime (13993003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88485 + ... + 88642.

It is an arithmetic number, because the mean of its divisors is an integer number (3542560).

Almost surely, 2^13993033 is an apocalyptic number.

It is an amenable number.

13993033 is a deficient number, since it is larger than the sum of its proper divisors (177207).

13993033 is an equidigital number, since it uses as much as digits as its factorization.

13993033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177206.

The product of its (nonzero) digits is 6561, while the sum is 31.

The square root of 13993033 is about 3740.7262663820. The cubic root of 13993033 is about 240.9742401144.

The spelling of 13993033 in words is "thirteen million, nine hundred ninety-three thousand, thirty-three".