2887641 has 12 divisors (see below), whose sum is σ = 4230720. Its totient is φ = 1897560.

The previous prime is 2887631. The next prime is 2887649. The reversal of 2887641 is 1467882.

2887641 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 641 = 666.

It is not a de Polignac number, because 2887641 - 2⁷ = 2887513 is a prime.

2887641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2887596 and 2887605.

It is not an unprimeable number, because it can be changed into a prime (2887649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1621 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (352560).

2^2887641 is an apocalyptic number.

It is an amenable number.

2887641 is a deficient number, since it is larger than the sum of its proper divisors (1343079).

2887641 is a wasteful number, since it uses less digits than its factorization.

2887641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596 (or 4593 counting only the distinct ones).

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

The square root of 2887641 is about 1699.3060348272. The cubic root of 2887641 is about 142.4014461674.

The spelling of 2887641 in words is "two million, eight hundred eighty-seven thousand, six hundred forty-one".