2641887 has 6 divisors (see below), whose sum is σ = 3816072. Its totient is φ = 1761252.

The previous prime is 2641879. The next prime is 2641889. The reversal of 2641887 is 7881462.

2641887 is a `hidden beast` number, since 2 + 641 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 2641887 - 2³ = 2641879 is a prime.

2641887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146763 + ... + 146780.

It is an arithmetic number, because the mean of its divisors is an integer number (636012).

2^2641887 is an apocalyptic number.

2641887 is a deficient number, since it is larger than the sum of its proper divisors (1174185).

2641887 is a wasteful number, since it uses less digits than its factorization.

2641887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293549 (or 293546 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2641887 is about 1625.3882613087. The cubic root of 2641887 is about 138.2413859714.

The spelling of 2641887 in words is "two million, six hundred forty-one thousand, eight hundred eighty-seven".