16945927 has 2 divisors, whose sum is σ = 16945928. Its totient is φ = 16945926.

The previous prime is 16945909. The next prime is 16945931. The reversal of 16945927 is 72954961.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16945927 - 2²³ = 8557319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16945727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472963 + 8472964.

It is an arithmetic number, because the mean of its divisors is an integer number (8472964).

Almost surely, 2^16945927 is an apocalyptic number.

16945927 is a deficient number, since it is larger than the sum of its proper divisors (1).

16945927 is an equidigital number, since it uses as much as digits as its factorization.

16945927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 16945927 is about 4116.5430885635. The cubic root of 16945927 is about 256.8552481147.

The spelling of 16945927 in words is "sixteen million, nine hundred forty-five thousand, nine hundred twenty-seven".