86099728 has 80 divisors (see below), whose sum is σ = 198237312. Its totient is φ = 36009600.

The previous prime is 86099711. The next prime is 86099729. The reversal of 86099728 is 82799068.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86099729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276693 + ... + 277003.

Almost surely, 2^86099728 is an apocalyptic number.

86099728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86099728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99118656).

86099728 is an abundant number, since it is smaller than the sum of its proper divisors (112137584).

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

86099728 is a wasteful number, since it uses less digits than its factorization.

86099728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 86099728 is about 9278.9939109798. The cubic root of 86099728 is about 441.5710504459.

The spelling of 86099728 in words is "eighty-six million, ninety-nine thousand, seven hundred twenty-eight".