89604820 has 12 divisors (see below), whose sum is σ = 188170164. Its totient is φ = 35841920.

The previous prime is 89604811. The next prime is 89604829. The reversal of 89604820 is 2840698.

It is an interprime number because it is at equal distance from previous prime (89604811) and next prime (89604829).

It can be written as a sum of positive squares in 2 ways, for example, as 60746436 + 28858384 = 7794^2 + 5372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 89604820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89604829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240101 + ... + 2240140.

It is an arithmetic number, because the mean of its divisors is an integer number (15680847).

Almost surely, 2^89604820 is an apocalyptic number.

It is an amenable number.

89604820 is an abundant number, since it is smaller than the sum of its proper divisors (98565344).

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

89604820 is a wasteful number, since it uses less digits than its factorization.

89604820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480250 (or 4480248 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 89604820 is about 9465.9822522546. The cubic root of 89604820 is about 447.4836006183.

The spelling of 89604820 in words is "eighty-nine million, six hundred four thousand, eight hundred twenty".