89146620 has 144 divisors (see below), whose sum is σ = 287606592. Its totient is φ = 22302720.

The previous prime is 89146619. The next prime is 89146621. The reversal of 89146620 is 2664198.

It is an interprime number because it is at equal distance from previous prime (89146619) and next prime (89146621).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89146621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252364 + ... + 252716.

It is an arithmetic number, because the mean of its divisors is an integer number (1997268).

Almost surely, 2^89146620 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 89146620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143803296).

89146620 is an abundant number, since it is smaller than the sum of its proper divisors (198459972).

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

89146620 is a wasteful number, since it uses less digits than its factorization.

89146620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 89146620 is about 9441.7487786956. The cubic root of 89146620 is about 446.7195514225.

The spelling of 89146620 in words is "eighty-nine million, one hundred forty-six thousand, six hundred twenty".