16993739 has 12 divisors (see below), whose sum is σ = 20451600. Its totient is φ = 14062608.

The previous prime is 16993703. The next prime is 16993741. The reversal of 16993739 is 93739961.

It is not a de Polignac number, because 16993739 - 2²⁴ = 216523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16993693 and 16993702.

It is not an unprimeable number, because it can be changed into a prime (16993759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4559 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (1704300).

Almost surely, 2^16993739 is an apocalyptic number.

16993739 is a deficient number, since it is larger than the sum of its proper divisors (3457861).

16993739 is a wasteful number, since it uses less digits than its factorization.

16993739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002 (or 11995 counting only the distinct ones).

The product of its digits is 275562, while the sum is 47.

The square root of 16993739 is about 4122.3462979231. The cubic root of 16993739 is about 257.0965889270.

The spelling of 16993739 in words is "sixteen million, nine hundred ninety-three thousand, seven hundred thirty-nine".