16504487 has 2 divisors, whose sum is σ = 16504488. Its totient is φ = 16504486.

The previous prime is 16504471. The next prime is 16504507. The reversal of 16504487 is 78440561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16504487 - 2⁴ = 16504471 is a prime.

It is a super-2 number, since 2×16504487² = 544796182266338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16504417) 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, 8252243 + 8252244.

It is an arithmetic number, because the mean of its divisors is an integer number (8252244).

Almost surely, 2^16504487 is an apocalyptic number.

16504487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16504487 is an equidigital number, since it uses as much as digits as its factorization.

16504487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 16504487 is about 4062.5714762943. The cubic root of 16504487 is about 254.6052433650.

The spelling of 16504487 in words is "sixteen million, five hundred four thousand, four hundred eighty-seven".