86918195 has 48 divisors (see below), whose sum is σ = 136573248. Its totient is φ = 51701760.

The previous prime is 86918189. The next prime is 86918213. The reversal of 86918195 is 59181968.

It is not a de Polignac number, because 86918195 - 2¹² = 86914099 is a prime.

Its product of digits (155520) is a multiple of the sum of its prime factors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131165 + ... + 131825.

It is an arithmetic number, because the mean of its divisors is an integer number (2845276).

Almost surely, 2^86918195 is an apocalyptic number.

86918195 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86918195 is a deficient number, since it is larger than the sum of its proper divisors (49655053).

86918195 is a wasteful number, since it uses less digits than its factorization.

86918195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 703 counting only the distinct ones).

The product of its digits is 155520, while the sum is 47.

The square root of 86918195 is about 9322.9928134693. The cubic root of 86918195 is about 442.9658366818.

The spelling of 86918195 in words is "eighty-six million, nine hundred eighteen thousand, one hundred ninety-five".