87112215 has 12 divisors (see below), whose sum is σ = 150994584. Its totient is φ = 46459824.

The previous prime is 87112187. The next prime is 87112217. The reversal of 87112215 is 51221178.

It is not a de Polignac number, because 87112215 - 2¹⁰ = 87111191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87112217) 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 in 11 ways as a sum of consecutive naturals, for example, 967869 + ... + 967958.

It is an arithmetic number, because the mean of its divisors is an integer number (12582882).

Almost surely, 2^87112215 is an apocalyptic number.

87112215 is a deficient number, since it is larger than the sum of its proper divisors (63882369).

87112215 is a wasteful number, since it uses less digits than its factorization.

87112215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935838 (or 1935835 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 87112215 is about 9333.3924700507. The cubic root of 87112215 is about 443.2951899018.

The spelling of 87112215 in words is "eighty-seven million, one hundred twelve thousand, two hundred fifteen".