16925393 has 2 divisors, whose sum is σ = 16925394. Its totient is φ = 16925392.

The previous prime is 16925383. The next prime is 16925399. The reversal of 16925393 is 39352961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16875664 + 49729 = 4108^2 + 223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16925393 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16925399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8462696 + 8462697.

It is an arithmetic number, because the mean of its divisors is an integer number (8462697).

Almost surely, 2^16925393 is an apocalyptic number.

It is an amenable number.

16925393 is a deficient number, since it is larger than the sum of its proper divisors (1).

16925393 is an equidigital number, since it uses as much as digits as its factorization.

16925393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 38.

The square root of 16925393 is about 4114.0482495955. The cubic root of 16925393 is about 256.7514592133.

The spelling of 16925393 in words is "sixteen million, nine hundred twenty-five thousand, three hundred ninety-three".