89193720 has 256 divisors, whose sum is σ = 342144000. Its totient is φ = 18439680.

The previous prime is 89193703. The next prime is 89193749. The reversal of 89193720 is 2739198.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 452662 + ... + 452858.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^89193720 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 89193720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171072000).

89193720 is an abundant number, since it is smaller than the sum of its proper divisors (252950280).

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

89193720 is a wasteful number, since it uses less digits than its factorization.

89193720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 89193720 is about 9444.2426906555. The cubic root of 89193720 is about 446.7982112992.

The spelling of 89193720 in words is "eighty-nine million, one hundred ninety-three thousand, seven hundred twenty".