16939013 has 32 divisors (see below), whose sum is σ = 22391040. Its totient is φ = 12441600.

The previous prime is 16939001. The next prime is 16939037. The reversal of 16939013 is 31093961.

It is a cyclic number.

It is not a de Polignac number, because 16939013 - 2⁴ = 16938997 is a prime.

It is a super-2 number, since 2×16939013² = 573860322828338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167663 + ... + 167763.

It is an arithmetic number, because the mean of its divisors is an integer number (699720).

Almost surely, 2^16939013 is an apocalyptic number.

16939013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16939013 is a deficient number, since it is larger than the sum of its proper divisors (5452027).

16939013 is a wasteful number, since it uses less digits than its factorization.

16939013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 16939013 is about 4115.7032205930. The cubic root of 16939013 is about 256.8203107369.

The spelling of 16939013 in words is "sixteen million, nine hundred thirty-nine thousand, thirteen".