89839760 has 20 divisors (see below), whose sum is σ = 208877628. Its totient is φ = 35935872.

The previous prime is 89839759. The next prime is 89839843. The reversal of 89839760 is 6793898.

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 66064384 = 4876^2 + 8128^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 89839699 and 89839708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561419 + ... + 561578.

Almost surely, 2^89839760 is an apocalyptic number.

89839760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89839760 is an abundant number, since it is smaller than the sum of its proper divisors (119037868).

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

89839760 is a wasteful number, since it uses less digits than its factorization.

89839760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123010 (or 1123004 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 89839760 is about 9478.3838284805. The cubic root of 89839760 is about 447.8743535824.

The spelling of 89839760 in words is "eighty-nine million, eight hundred thirty-nine thousand, seven hundred sixty".