86136620 has 24 divisors (see below), whose sum is σ = 191528064. Its totient is φ = 32427776.

The previous prime is 86136619. The next prime is 86136647. The reversal of 86136620 is 2663168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126332 + ... + 127011.

It is an arithmetic number, because the mean of its divisors is an integer number (7980336).

Almost surely, 2^86136620 is an apocalyptic number.

It is an amenable number.

86136620 is an abundant number, since it is smaller than the sum of its proper divisors (105391444).

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

86136620 is a wasteful number, since it uses less digits than its factorization.

86136620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253369 (or 253367 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 86136620 is about 9280.9816291166. The cubic root of 86136620 is about 441.6341095419.

Adding to 86136620 its reverse (2663168), we get a palindrome (88799788).

The spelling of 86136620 in words is "eighty-six million, one hundred thirty-six thousand, six hundred twenty".