86188090 has 8 divisors (see below), whose sum is σ = 155138580. Its totient is φ = 34475232.

The previous prime is 86188073. The next prime is 86188111. The reversal of 86188090 is 9088168.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82828201 + 3359889 = 9101^2 + 1833^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4309395 + ... + 4309414.

Almost surely, 2^86188090 is an apocalyptic number.

86188090 is a deficient number, since it is larger than the sum of its proper divisors (68950490).

86188090 is a wasteful number, since it uses less digits than its factorization.

86188090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618816.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 86188090 is about 9283.7540898066. The cubic root of 86188090 is about 441.7220565792.

The spelling of 86188090 in words is "eighty-six million, one hundred eighty-eight thousand, ninety".