86136818 has 8 divisors (see below), whose sum is σ = 132356700. Its totient is φ = 42017920.

The previous prime is 86136797. The next prime is 86136821. The reversal of 86136818 is 81863168.

It can be written as a sum of positive squares in 2 ways, for example, as 69839449 + 16297369 = 8357^2 + 4037^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 525143 + ... + 525306.

Almost surely, 2^86136818 is an apocalyptic number.

86136818 is a deficient number, since it is larger than the sum of its proper divisors (46219882).

86136818 is a wasteful number, since it uses less digits than its factorization.

86136818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050492.

The product of its digits is 55296, while the sum is 41.

The square root of 86136818 is about 9280.9922960856. The cubic root of 86136818 is about 441.6344479326.

The spelling of 86136818 in words is "eighty-six million, one hundred thirty-six thousand, eight hundred eighteen".