16919379 has 6 divisors (see below), whose sum is σ = 24439116. Its totient is φ = 11279580.

The previous prime is 16919327. The next prime is 16919381. The reversal of 16919379 is 97391961.

It is not a de Polignac number, because 16919379 - 2⁷ = 16919251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16914379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 939957 + ... + 939974.

It is an arithmetic number, because the mean of its divisors is an integer number (4073186).

Almost surely, 2^16919379 is an apocalyptic number.

16919379 is a deficient number, since it is larger than the sum of its proper divisors (7519737).

16919379 is a wasteful number, since it uses less digits than its factorization.

16919379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879937 (or 1879934 counting only the distinct ones).

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

The square root of 16919379 is about 4113.3172744149. The cubic root of 16919379 is about 256.7210456172.

The spelling of 16919379 in words is "sixteen million, nine hundred nineteen thousand, three hundred seventy-nine".