89881380 has 96 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 22556160.

The previous prime is 89881373. The next prime is 89881409. The reversal of 89881380 is 8318898.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4285 + ... + 14075.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^89881380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89881380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148055040).

89881380 is an abundant number, since it is smaller than the sum of its proper divisors (206228700).

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

89881380 is a wasteful number, since it uses less digits than its factorization.

89881380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826 (or 9818 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 89881380 is about 9480.5790962367. The cubic root of 89881380 is about 447.9435050465.

The spelling of 89881380 in words is "eighty-nine million, eight hundred eighty-one thousand, three hundred eighty".