16940893 has 2 divisors, whose sum is σ = 16940894. Its totient is φ = 16940892.

The previous prime is 16940863. The next prime is 16940897. The reversal of 16940893 is 39804961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8892324 + 8048569 = 2982^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 16940893 - 2¹³ = 16932701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16940897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8470446 + 8470447.

It is an arithmetic number, because the mean of its divisors is an integer number (8470447).

Almost surely, 2^16940893 is an apocalyptic number.

It is an amenable number.

16940893 is a deficient number, since it is larger than the sum of its proper divisors (1).

16940893 is an equidigital number, since it uses as much as digits as its factorization.

16940893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 16940893 is about 4115.9316077894. The cubic root of 16940893 is about 256.8298115723.

The spelling of 16940893 in words is "sixteen million, nine hundred forty thousand, eight hundred ninety-three".