87331115 has 8 divisors (see below), whose sum is σ = 109353888. Its totient is φ = 66827200.

The previous prime is 87331081. The next prime is 87331117. The reversal of 87331115 is 51113378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87331115 - 2⁶ = 87331051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87331117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379586 + ... + 379815.

It is an arithmetic number, because the mean of its divisors is an integer number (13669236).

Almost surely, 2^87331115 is an apocalyptic number.

87331115 is a deficient number, since it is larger than the sum of its proper divisors (22022773).

87331115 is a wasteful number, since it uses less digits than its factorization.

87331115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759429.

The product of its digits is 2520, while the sum is 29.

The square root of 87331115 is about 9345.1118238360. Note that the first 3 decimals coincide. The cubic root of 87331115 is about 443.6661908774. Note that the first 3 decimals are identical.

The spelling of 87331115 in words is "eighty-seven million, three hundred thirty-one thousand, one hundred fifteen".