87276915 has 24 divisors (see below), whose sum is σ = 165033648. Its totient is φ = 42315840.

The previous prime is 87276913. The next prime is 87276923. The reversal of 87276915 is 51967278.

It is not a de Polignac number, because 87276915 - 2¹ = 87276913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (87276913) 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 23 ways as a sum of consecutive naturals, for example, 87664 + ... + 88653.

It is an arithmetic number, because the mean of its divisors is an integer number (6876402).

Almost surely, 2^87276915 is an apocalyptic number.

87276915 is a deficient number, since it is larger than the sum of its proper divisors (77756733).

87276915 is a wasteful number, since it uses less digits than its factorization.

87276915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176339 (or 176336 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 87276915 is about 9342.2114619612. The cubic root of 87276915 is about 443.5743882251.

The spelling of 87276915 in words is "eighty-seven million, two hundred seventy-six thousand, nine hundred fifteen".