89790680 has 64 divisors (see below), whose sum is σ = 235837440. Its totient is φ = 30125952.

The previous prime is 89790677. The next prime is 89790683. The reversal of 89790680 is 8609798.

It is an interprime number because it is at equal distance from previous prime (89790677) and next prime (89790683).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89790683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9749 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (3684960).

Almost surely, 2^89790680 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 89790680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117918720).

89790680 is an abundant number, since it is smaller than the sum of its proper divisors (146046760).

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

89790680 is a wasteful number, since it uses less digits than its factorization.

89790680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 89790680 is about 9475.7944257988. The cubic root of 89790680 is about 447.7927799102.

The spelling of 89790680 in words is "eighty-nine million, seven hundred ninety thousand, six hundred eighty".