8591940 has 96 divisors (see below), whose sum is σ = 30562560. Its totient is φ = 1963008.

The previous prime is 8591927. The next prime is 8591941. The reversal of 8591940 is 491958.

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

It is a junction number, because it is equal to n+sod(n) for n = 8591895 and 8591904.

It is not an unprimeable number, because it can be changed into a prime (8591941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2644 + ... + 4916.

It is an arithmetic number, because the mean of its divisors is an integer number (318360).

Almost surely, 2^8591940 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 8591940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15281280).

8591940 is an abundant number, since it is smaller than the sum of its proper divisors (21970620).

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

8591940 is a wasteful number, since it uses less digits than its factorization.

8591940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 8591940 is about 2931.2011189954. The cubic root of 8591940 is about 204.8159363108.

The spelling of 8591940 in words is "eight million, five hundred ninety-one thousand, nine hundred forty".