16940863 has 2 divisors, whose sum is σ = 16940864. Its totient is φ = 16940862.

The previous prime is 16940827. The next prime is 16940893. The reversal of 16940863 is 36804961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16940863 - 2¹⁷ = 16809791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16940893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8470431 + 8470432.

It is an arithmetic number, because the mean of its divisors is an integer number (8470432).

Almost surely, 2^16940863 is an apocalyptic number.

16940863 is a deficient number, since it is larger than the sum of its proper divisors (1).

16940863 is an equidigital number, since it uses as much as digits as its factorization.

16940863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 16940863 is about 4115.9279634124. The cubic root of 16940863 is about 256.8296599687.

The spelling of 16940863 in words is "sixteen million, nine hundred forty thousand, eight hundred sixty-three".