16706939 has 4 divisors (see below), whose sum is σ = 16942320. Its totient is φ = 16471560.

The previous prime is 16706927. The next prime is 16706953. The reversal of 16706939 is 93960761.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16706939 - 2¹⁶ = 16641403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16706896 and 16706905.

It is not an unprimeable number, because it can be changed into a prime (16706839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117584 + ... + 117725.

It is an arithmetic number, because the mean of its divisors is an integer number (4235580).

Almost surely, 2^16706939 is an apocalyptic number.

16706939 is a deficient number, since it is larger than the sum of its proper divisors (235381).

16706939 is an equidigital number, since it uses as much as digits as its factorization.

16706939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235380.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 16706939 is about 4087.4122620553. The cubic root of 16706939 is about 255.6420524330.

The spelling of 16706939 in words is "sixteen million, seven hundred six thousand, nine hundred thirty-nine".