16487417 has 2 divisors, whose sum is σ = 16487418. Its totient is φ = 16487416.

The previous prime is 16487413. The next prime is 16487431. The reversal of 16487417 is 71478461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11215801 + 5271616 = 3349^2 + 2296^2 .

It is a cyclic number.

It is not a de Polignac number, because 16487417 - 2² = 16487413 is a prime.

It is not a weakly prime, because it can be changed into another prime (16487413) by changing a digit.

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 as a sum of consecutive naturals, namely, 8243708 + 8243709.

It is an arithmetic number, because the mean of its divisors is an integer number (8243709).

Almost surely, 2^16487417 is an apocalyptic number.

It is an amenable number.

16487417 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487417 is an equidigital number, since it uses as much as digits as its factorization.

16487417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The square root of 16487417 is about 4060.4700466818. The cubic root of 16487417 is about 254.5174367237.

The spelling of 16487417 in words is "sixteen million, four hundred eighty-seven thousand, four hundred seventeen".