2087646 has 32 divisors (see below), whose sum is σ = 4658688. Its totient is φ = 618240.

The previous prime is 2087627. The next prime is 2087669. The reversal of 2087646 is 6467802.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2766 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (145584).

2^2087646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2087646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329344).

2087646 is an abundant number, since it is smaller than the sum of its proper divisors (2571042).

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

2087646 is a wasteful number, since it uses less digits than its factorization.

2087646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2087646 is about 1444.8688521800. The cubic root of 2087646 is about 127.8063069813.

The spelling of 2087646 in words is "two million, eighty-seven thousand, six hundred forty-six".