2061387 has 12 divisors (see below), whose sum is σ = 2993640. Its totient is φ = 1366848.

The previous prime is 2061383. The next prime is 2061391. The reversal of 2061387 is 7831602.

It is an interprime number because it is at equal distance from previous prime (2061383) and next prime (2061391).

It is not a de Polignac number, because 2061387 - 2² = 2061383 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2061387.

It is not an unprimeable number, because it can be changed into a prime (2061383) 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 11 ways as a sum of consecutive naturals, for example, 1539 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (249470).

2^2061387 is an apocalyptic number.

2061387 is a deficient number, since it is larger than the sum of its proper divisors (932253).

2061387 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 2061387 = (3781620)₉.

2061387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2061387 is about 1435.7531124814. The cubic root of 2061387 is about 127.2681831556.

Adding to 2061387 its reverse (7831602), we get a palindrome (9892989).

The spelling of 2061387 in words is "two million, sixty-one thousand, three hundred eighty-seven".