86782194 has 24 divisors (see below), whose sum is σ = 188212752. Its totient is φ = 28899000.

The previous prime is 86782159. The next prime is 86782249. The reversal of 86782194 is 49128768.

It is a super-2 number, since 2×86782194² = 15062298390907272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25069 + ... + 28319.

It is an arithmetic number, because the mean of its divisors is an integer number (7842198).

Almost surely, 2^86782194 is an apocalyptic number.

86782194 is an abundant number, since it is smaller than the sum of its proper divisors (101430558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86782194 is a wasteful number, since it uses less digits than its factorization.

86782194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742 (or 4739 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 86782194 is about 9315.6961092556. The cubic root of 86782194 is about 442.7346796908.

The spelling of 86782194 in words is "eighty-six million, seven hundred eighty-two thousand, one hundred ninety-four".