16494287 has 2 divisors, whose sum is σ = 16494288. Its totient is φ = 16494286.

The previous prime is 16494253. The next prime is 16494293. The reversal of 16494287 is 78249461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16494287 - 2⁸ = 16494031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16496287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247143 + 8247144.

It is an arithmetic number, because the mean of its divisors is an integer number (8247144).

Almost surely, 2^16494287 is an apocalyptic number.

16494287 is a deficient number, since it is larger than the sum of its proper divisors (1).

16494287 is an equidigital number, since it uses as much as digits as its factorization.

16494287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 16494287 is about 4061.3159197482. The cubic root of 16494287 is about 254.5527827088.

The spelling of 16494287 in words is "sixteen million, four hundred ninety-four thousand, two hundred eighty-seven".