86879091 has 8 divisors (see below), whose sum is σ = 124749520. Its totient is φ = 53464032.

The previous prime is 86879087. The next prime is 86879113. The reversal of 86879091 is 19097868.

It is a happy number.

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

It is not a de Polignac number, because 86879091 - 2² = 86879087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86879091.

It is not an unprimeable number, because it can be changed into a prime (86879011) 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, 1113796 + ... + 1113873.

It is an arithmetic number, because the mean of its divisors is an integer number (15593690).

Almost surely, 2^86879091 is an apocalyptic number.

86879091 is a deficient number, since it is larger than the sum of its proper divisors (37870429).

86879091 is a wasteful number, since it uses less digits than its factorization.

86879091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227685.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 86879091 is about 9320.8953969026. The cubic root of 86879091 is about 442.8993974498.

The spelling of 86879091 in words is "eighty-six million, eight hundred seventy-nine thousand, ninety-one".