16970939 has 4 divisors (see below), whose sum is σ = 17365656. Its totient is φ = 16576224.

The previous prime is 16970911. The next prime is 16970953. The reversal of 16970939 is 93907961.

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 16970939 - 2¹² = 16966843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16970939.

It is not an unprimeable number, because it can be changed into a prime (16970909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197294 + ... + 197379.

It is an arithmetic number, because the mean of its divisors is an integer number (4341414).

Almost surely, 2^16970939 is an apocalyptic number.

16970939 is a deficient number, since it is larger than the sum of its proper divisors (394717).

16970939 is an equidigital number, since it uses as much as digits as its factorization.

16970939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394716.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 16970939 is about 4119.5799543157. The cubic root of 16970939 is about 256.9815578221.

The spelling of 16970939 in words is "sixteen million, nine hundred seventy thousand, nine hundred thirty-nine".