2591862 has 64 divisors (see below), whose sum is σ = 6580224. Its totient is φ = 662400.

The previous prime is 2591857. The next prime is 2591891. The reversal of 2591862 is 2681952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25612 + ... + 25712.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2^2591862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2591862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3290112).

2591862 is an abundant number, since it is smaller than the sum of its proper divisors (3988362).

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

2591862 is a wasteful number, since it uses less digits than its factorization.

2591862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its digits is 8640, while the sum is 33.

The square root of 2591862 is about 1609.9260852598. The cubic root of 2591862 is about 137.3632712458.

The spelling of 2591862 in words is "two million, five hundred ninety-one thousand, eight hundred sixty-two".