86706220 has 24 divisors (see below), whose sum is σ = 183207024. Its totient is φ = 34468416.

The previous prime is 86706197. The next prime is 86706227. The reversal of 86706220 is 2260768.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86706227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10039 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (7633626).

Almost surely, 2^86706220 is an apocalyptic number.

It is an amenable number.

86706220 is an abundant number, since it is smaller than the sum of its proper divisors (96500804).

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

86706220 is a wasteful number, since it uses less digits than its factorization.

86706220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26769 (or 26767 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 86706220 is about 9311.6174749610. The cubic root of 86706220 is about 442.6054437132.

Adding to 86706220 its reverse (2260768), we get a palindrome (88966988).

The spelling of 86706220 in words is "eighty-six million, seven hundred six thousand, two hundred twenty".