86579722 has 8 divisors (see below), whose sum is σ = 129995172. Its totient is φ = 43248000.

The previous prime is 86579693. The next prime is 86579723. The reversal of 86579722 is 22797568.

It can be written as a sum of positive squares in 2 ways, for example, as 75012921 + 11566801 = 8661^2 + 3401^2 .

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

It is not an unprimeable number, because it can be changed into a prime (86579723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18279 + ... + 22522.

Almost surely, 2^86579722 is an apocalyptic number.

86579722 is a deficient number, since it is larger than the sum of its proper divisors (43415450).

86579722 is a wasteful number, since it uses less digits than its factorization.

86579722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41864.

The product of its digits is 423360, while the sum is 46.

The square root of 86579722 is about 9304.8225130843. The cubic root of 86579722 is about 442.3900960203.

The spelling of 86579722 in words is "eighty-six million, five hundred seventy-nine thousand, seven hundred twenty-two".