86319884 has 24 divisors (see below), whose sum is σ = 173527200. Its totient is φ = 36804096.

The previous prime is 86319847. The next prime is 86319887. The reversal of 86319884 is 48891368.

It is a super-2 number, since 2×86319884² = 14902244747546912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86319887) 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, 2309 + ... + 13340.

It is an arithmetic number, because the mean of its divisors is an integer number (7230300).

Almost surely, 2^86319884 is an apocalyptic number.

It is an amenable number.

86319884 is an abundant number, since it is smaller than the sum of its proper divisors (87207316).

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

86319884 is a wasteful number, since it uses less digits than its factorization.

86319884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857 (or 15855 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 86319884 is about 9290.8494767701. The cubic root of 86319884 is about 441.9470941228.

The spelling of 86319884 in words is "eighty-six million, three hundred nineteen thousand, eight hundred eighty-four".