16870087 has 6 divisors (see below), whose sum is σ = 18267792. Its totient is φ = 15572232.

The previous prime is 16870057. The next prime is 16870093. The reversal of 16870087 is 78007861.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-16870087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16870037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49743 + ... + 50080.

It is an arithmetic number, because the mean of its divisors is an integer number (3044632).

Almost surely, 2^16870087 is an apocalyptic number.

16870087 is a deficient number, since it is larger than the sum of its proper divisors (1397705).

16870087 is an equidigital number, since it uses as much as digits as its factorization.

16870087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99849 (or 99836 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 16870087 is about 4107.3211464408. The cubic root of 16870087 is about 256.4714974022.

The spelling of 16870087 in words is "sixteen million, eight hundred seventy thousand, eighty-seven".