83887115 has 8 divisors (see below), whose sum is σ = 108408048. Its totient is φ = 61947360.

The previous prime is 83887099. The next prime is 83887123. The reversal of 83887115 is 51178838.

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

It is not a de Polignac number, because 83887115 - 2⁴ = 83887099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645221 + ... + 645350.

It is an arithmetic number, because the mean of its divisors is an integer number (13551006).

Almost surely, 2^83887115 is an apocalyptic number.

83887115 is a deficient number, since it is larger than the sum of its proper divisors (24520933).

83887115 is a wasteful number, since it uses less digits than its factorization.

83887115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290589.

The product of its digits is 53760, while the sum is 41.

The square root of 83887115 is about 9158.9909378708. The cubic root of 83887115 is about 437.7556427010.

The spelling of 83887115 in words is "eighty-three million, eight hundred eighty-seven thousand, one hundred fifteen".