89488820 has 12 divisors (see below), whose sum is σ = 187926564. Its totient is φ = 35795520.

The previous prime is 89488813. The next prime is 89488831. The reversal of 89488820 is 2888498.

It can be written as a sum of positive squares in 2 ways, for example, as 61058596 + 28430224 = 7814^2 + 5332^2 .

It is a congruent number.

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, 2237201 + ... + 2237240.

It is an arithmetic number, because the mean of its divisors is an integer number (15660547).

Almost surely, 2^89488820 is an apocalyptic number.

It is an amenable number.

89488820 is an abundant number, since it is smaller than the sum of its proper divisors (98437744).

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

89488820 is a wasteful number, since it uses less digits than its factorization.

89488820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474450 (or 4474448 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 89488820 is about 9459.8530643980. The cubic root of 89488820 is about 447.2904171363.

The spelling of 89488820 in words is "eighty-nine million, four hundred eighty-eight thousand, eight hundred twenty".