87504115 has 4 divisors (see below), whose sum is σ = 105004944. Its totient is φ = 70003288.

The previous prime is 87504089. The next prime is 87504119. The reversal of 87504115 is 51140578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51140578 = 2 ⋅25570289.

It is a cyclic number.

It is not a de Polignac number, because 87504115 - 2¹⁵ = 87471347 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87504119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8750407 + ... + 8750416.

It is an arithmetic number, because the mean of its divisors is an integer number (26251236).

Almost surely, 2^87504115 is an apocalyptic number.

87504115 is a deficient number, since it is larger than the sum of its proper divisors (17500829).

87504115 is a wasteful number, since it uses less digits than its factorization.

87504115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17500828.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 87504115 is about 9354.3634203510. The cubic root of 87504115 is about 443.9589602383.

The spelling of 87504115 in words is "eighty-seven million, five hundred four thousand, one hundred fifteen".