89999860 has 24 divisors (see below), whose sum is σ = 193396896. Its totient is φ = 35162400.

The previous prime is 89999857. The next prime is 89999869. The reversal of 89999860 is 6899998.

It is a junction number, because it is equal to n+sod(n) for n = 89999795 and 89999804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89999869) 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, 51466 + ... + 53185.

It is an arithmetic number, because the mean of its divisors is an integer number (8058204).

Almost surely, 2^89999860 is an apocalyptic number.

It is an amenable number.

89999860 is an abundant number, since it is smaller than the sum of its proper divisors (103397036).

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

89999860 is a wasteful number, since it uses less digits than its factorization.

89999860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104703 (or 104701 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 89999860 is about 9486.8256018544. The cubic root of 89999860 is about 448.1402422865.

The spelling of 89999860 in words is "eighty-nine million, nine hundred ninety-nine thousand, eight hundred sixty".