89643556 has 12 divisors (see below), whose sum is σ = 156972060. Its totient is φ = 44794400.

The previous prime is 89643529. The next prime is 89643607. The reversal of 89643556 is 65534698.

It can be written as a sum of positive squares in 2 ways, for example, as 4708900 + 84934656 = 2170^2 + 9216^2 .

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, 1710 + ... + 13498.

It is an arithmetic number, because the mean of its divisors is an integer number (13081005).

Almost surely, 2^89643556 is an apocalyptic number.

It is an amenable number.

89643556 is a deficient number, since it is larger than the sum of its proper divisors (67328504).

89643556 is a wasteful number, since it uses less digits than its factorization.

89643556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694 (or 13692 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 89643556 is about 9468.0280945929. The cubic root of 89643556 is about 447.5480734431.

The spelling of 89643556 in words is "eighty-nine million, six hundred forty-three thousand, five hundred fifty-six".