16919793 has 24 divisors (see below), whose sum is σ = 27557600. Its totient is φ = 10252440.

The previous prime is 16919737. The next prime is 16919813. The reversal of 16919793 is 39791961.

It is not a de Polignac number, because 16919793 - 2⁶ = 16919729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16911793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 678 + ... + 5856.

Almost surely, 2^16919793 is an apocalyptic number.

It is an amenable number.

16919793 is a deficient number, since it is larger than the sum of its proper divisors (10637807).

16919793 is a wasteful number, since it uses less digits than its factorization.

16919793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210 (or 5193 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 16919793 is about 4113.3675984526. The cubic root of 16919793 is about 256.7231395011.

The spelling of 16919793 in words is "sixteen million, nine hundred nineteen thousand, seven hundred ninety-three".