89740 has 24 divisors (see below), whose sum is σ = 215712. Its totient is φ = 30720.

The previous prime is 89689. The next prime is 89753. The reversal of 89740 is 4798.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 89699 and 89708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181 + ... + 460.

It is an arithmetic number, because the mean of its divisors is an integer number (8988).

2⁸⁹⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

89740 is an abundant number, since it is smaller than the sum of its proper divisors (125972).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107856).

89740 is a wasteful number, since it uses less digits than its factorization.

89740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 89740 is about 299.5663532508. The cubic root of 89740 is about 44.7708515749.

The spelling of 89740 in words is "eighty-nine thousand, seven hundred forty".