2041987 has 4 divisors (see below), whose sum is σ = 2149480. Its totient is φ = 1934496.

The previous prime is 2041967. The next prime is 2041997. The reversal of 2041987 is 7891402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7891402 = 2 ⋅3945701.

It is a cyclic number.

It is not a de Polignac number, because 2041987 - 2⁷ = 2041859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2041937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53718 + ... + 53755.

It is an arithmetic number, because the mean of its divisors is an integer number (537370).

2^2041987 is an apocalyptic number.

2041987 is a deficient number, since it is larger than the sum of its proper divisors (107493).

2041987 is a wasteful number, since it uses less digits than its factorization.

2041987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107492.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2041987 is about 1428.9811055434. The cubic root of 2041987 is about 126.8676779163.

The spelling of 2041987 in words is "two million, forty-one thousand, nine hundred eighty-seven".