86428186 has 32 divisors (see below), whose sum is σ = 145248768. Its totient is φ = 38301120.

The previous prime is 86428141. The next prime is 86428193. The reversal of 86428186 is 68182468.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126201 + ... + 126883.

It is an arithmetic number, because the mean of its divisors is an integer number (4539024).

Almost surely, 2^86428186 is an apocalyptic number.

86428186 is a deficient number, since it is larger than the sum of its proper divisors (58820582).

86428186 is a wasteful number, since it uses less digits than its factorization.

86428186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886.

The product of its digits is 147456, while the sum is 43.

The square root of 86428186 is about 9296.6760726617. The cubic root of 86428186 is about 442.1318478101.

The spelling of 86428186 in words is "eighty-six million, four hundred twenty-eight thousand, one hundred eighty-six".