16490975 has 6 divisors (see below), whose sum is σ = 20448840. Its totient is φ = 13192760.

The previous prime is 16490963. The next prime is 16490987. The reversal of 16490975 is 57909461.

It is an interprime number because it is at equal distance from previous prime (16490963) and next prime (16490987).

It is not a de Polignac number, because 16490975 - 2⁴ = 16490959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329795 + ... + 329844.

It is an arithmetic number, because the mean of its divisors is an integer number (3408140).

Almost surely, 2^16490975 is an apocalyptic number.

16490975 is a deficient number, since it is larger than the sum of its proper divisors (3957865).

16490975 is an equidigital number, since it uses as much as digits as its factorization.

16490975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659649 (or 659644 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 16490975 is about 4060.9081496631. The cubic root of 16490975 is about 254.5357437738.

The spelling of 16490975 in words is "sixteen million, four hundred ninety thousand, nine hundred seventy-five".