89789556 has 24 divisors (see below), whose sum is σ = 210847840. Its totient is φ = 29738592.

The previous prime is 89789551. The next prime is 89789587. The reversal of 89789556 is 65598798.

It is a junction number, because it is equal to n+sod(n) for n = 89789496 and 89789505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89789551) 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, 21946 + ... + 25713.

Almost surely, 2^89789556 is an apocalyptic number.

It is an amenable number.

89789556 is an abundant number, since it is smaller than the sum of its proper divisors (121058284).

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

89789556 is a wasteful number, since it uses less digits than its factorization.

89789556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47823 (or 47821 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The square root of 89789556 is about 9475.7351166018. The cubic root of 89789556 is about 447.7909114120.

The spelling of 89789556 in words is "eighty-nine million, seven hundred eighty-nine thousand, five hundred fifty-six".