16487651 has 2 divisors, whose sum is σ = 16487652. Its totient is φ = 16487650.

The previous prime is 16487641. The next prime is 16487677. The reversal of 16487651 is 15678461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16487651 - 2⁶ = 16487587 is a prime.

It is not a weakly prime, because it can be changed into another prime (16487621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243825 + 8243826.

It is an arithmetic number, because the mean of its divisors is an integer number (8243826).

Almost surely, 2^16487651 is an apocalyptic number.

16487651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487651 is an equidigital number, since it uses as much as digits as its factorization.

16487651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 16487651 is about 4060.4988609776. The cubic root of 16487651 is about 254.5186408096.

The spelling of 16487651 in words is "sixteen million, four hundred eighty-seven thousand, six hundred fifty-one".