2061587 has 4 divisors (see below), whose sum is σ = 2249016. Its totient is φ = 1874160.

The previous prime is 2061583. The next prime is 2061589. The reversal of 2061587 is 7851602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2061587 - 2² = 2061583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93698 + ... + 93719.

It is an arithmetic number, because the mean of its divisors is an integer number (562254).

2^2061587 is an apocalyptic number.

2061587 is a deficient number, since it is larger than the sum of its proper divisors (187429).

2061587 is a wasteful number, since it uses less digits than its factorization.

2061587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187428.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2061587 is about 1435.8227606498. The cubic root of 2061587 is about 127.2722989627.

It can be divided in two parts, 20615 and 87, that added together give a palindrome (20702).

The spelling of 2061587 in words is "two million, sixty-one thousand, five hundred eighty-seven".