87510012 has 12 divisors (see below), whose sum is σ = 204190056. Its totient is φ = 29170000.

The previous prime is 87510011. The next prime is 87510013. The reversal of 87510012 is 21001578.

It is an interprime number because it is at equal distance from previous prime (87510011) and next prime (87510013).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87510011) 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 in 3 ways as a sum of consecutive naturals, for example, 3646239 + ... + 3646262.

It is an arithmetic number, because the mean of its divisors is an integer number (17015838).

Almost surely, 2^87510012 is an apocalyptic number.

It is an amenable number.

87510012 is an abundant number, since it is smaller than the sum of its proper divisors (116680044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87510012 is a wasteful number, since it uses less digits than its factorization.

87510012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292508 (or 7292506 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 87510012 is about 9354.6786155378. The cubic root of 87510012 is about 443.9689329776.

The spelling of 87510012 in words is "eighty-seven million, five hundred ten thousand, twelve".