16942779 has 36 divisors (see below), whose sum is σ = 28821936. Its totient is φ = 9561888.

The previous prime is 16942753. The next prime is 16942787. The reversal of 16942779 is 97724961.

It is not a de Polignac number, because 16942779 - 2⁹ = 16942267 is a prime.

Its product of digits (190512) is a multiple of the sum of its prime divisors (486).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16942279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45237 + ... + 45609.

Almost surely, 2^16942779 is an apocalyptic number.

16942779 is a deficient number, since it is larger than the sum of its proper divisors (11879157).

16942779 is a wasteful number, since it uses less digits than its factorization.

16942779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 486 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 16942779 is about 4116.1607111482. The cubic root of 16942779 is about 256.8393420232.

The spelling of 16942779 in words is "sixteen million, nine hundred forty-two thousand, seven hundred seventy-nine".