89876560 has 40 divisors (see below), whose sum is σ = 209502216. Its totient is φ = 35857920.

The previous prime is 89876519. The next prime is 89876599. The reversal of 89876560 is 6567898.

It can be written as a sum of positive squares in 4 ways, for example, as 20720704 + 69155856 = 4552^2 + 8316^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35662 + ... + 38098.

Almost surely, 2^89876560 is an apocalyptic number.

89876560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89876560 is an abundant number, since it is smaller than the sum of its proper divisors (119625656).

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

89876560 is a wasteful number, since it uses less digits than its factorization.

89876560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 89876560 is about 9480.3248889476. The cubic root of 89876560 is about 447.9354977288.

The spelling of 89876560 in words is "eighty-nine million, eight hundred seventy-six thousand, five hundred sixty".