87500099 has 2 divisors, whose sum is σ = 87500100. Its totient is φ = 87500098.

The previous prime is 87500093. The next prime is 87500117. The reversal of 87500099 is 99000578.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87500099 is a prime.

It is not a weakly prime, because it can be changed into another prime (87500093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43750049 + 43750050.

It is an arithmetic number, because the mean of its divisors is an integer number (43750050).

Almost surely, 2^87500099 is an apocalyptic number.

87500099 is a deficient number, since it is larger than the sum of its proper divisors (1).

87500099 is an equidigital number, since it uses as much as digits as its factorization.

87500099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 87500099 is about 9354.1487587059. The cubic root of 87500099 is about 443.9521683046.

The spelling of 87500099 in words is "eighty-seven million, five hundred thousand, ninety-nine".