2085564 has 48 divisors (see below), whose sum is σ = 5433120. Its totient is φ = 618240.

The previous prime is 2085539. The next prime is 2085569. The reversal of 2085564 is 4655802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085569) 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, 4294 + ... + 4754.

It is an arithmetic number, because the mean of its divisors is an integer number (113190).

2^2085564 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 2085564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2716560).

2085564 is an abundant number, since it is smaller than the sum of its proper divisors (3347556).

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

2085564 is a wasteful number, since it uses less digits than its factorization.

2085564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2085564 is about 1444.1481918418. The cubic root of 2085564 is about 127.7638059637.

The spelling of 2085564 in words is "two million, eighty-five thousand, five hundred sixty-four".