86613418 has 4 divisors (see below), whose sum is σ = 129920130. Its totient is φ = 43306708.

The previous prime is 86613407. The next prime is 86613431. The reversal of 86613418 is 81431668.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 76860289 + 9753129 = 8767^2 + 3123^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21653353 + ... + 21653356.

Almost surely, 2^86613418 is an apocalyptic number.

86613418 is a deficient number, since it is larger than the sum of its proper divisors (43306712).

86613418 is a wasteful number, since it uses less digits than its factorization.

86613418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43306711.

The product of its digits is 27648, while the sum is 37.

The square root of 86613418 is about 9306.6330109229. The cubic root of 86613418 is about 442.4474799084.

The spelling of 86613418 in words is "eighty-six million, six hundred thirteen thousand, four hundred eighteen".