16970189 has 2 divisors, whose sum is σ = 16970190. Its totient is φ = 16970188.

The previous prime is 16970153. The next prime is 16970197. The reversal of 16970189 is 98107961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 2301289 = 3830^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 16970189 - 2⁸ = 16969933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16970689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8485094 + 8485095.

It is an arithmetic number, because the mean of its divisors is an integer number (8485095).

Almost surely, 2^16970189 is an apocalyptic number.

It is an amenable number.

16970189 is a deficient number, since it is larger than the sum of its proper divisors (1).

16970189 is an equidigital number, since it uses as much as digits as its factorization.

16970189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 16970189 is about 4119.4889246119. The cubic root of 16970189 is about 256.9777721544.

The spelling of 16970189 in words is "sixteen million, nine hundred seventy thousand, one hundred eighty-nine".