89788628 has 12 divisors (see below), whose sum is σ = 166373172. Its totient is φ = 42253440.

The previous prime is 89788627. The next prime is 89788637. The reversal of 89788628 is 82688798.

It can be written as a sum of positive squares in 2 ways, for example, as 41319184 + 48469444 = 6428^2 + 6962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89788627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660143 + ... + 660278.

It is an arithmetic number, because the mean of its divisors is an integer number (13864431).

Almost surely, 2^89788628 is an apocalyptic number.

It is an amenable number.

89788628 is a deficient number, since it is larger than the sum of its proper divisors (76584544).

89788628 is a wasteful number, since it uses less digits than its factorization.

89788628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320442 (or 1320440 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 56.

The square root of 89788628 is about 9475.6861492981. The cubic root of 89788628 is about 447.7893687255.

The spelling of 89788628 in words is "eighty-nine million, seven hundred eighty-eight thousand, six hundred twenty-eight".