2849861 has 16 divisors (see below), whose sum is σ = 3514368. Its totient is φ = 2257200.

The previous prime is 2849857. The next prime is 2849887. The reversal of 2849861 is 1689482.

It is a cyclic number.

It is not a de Polignac number, because 2849861 - 2² = 2849857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2849831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4706 + ... + 5276.

It is an arithmetic number, because the mean of its divisors is an integer number (219648).

2^2849861 is an apocalyptic number.

It is an amenable number.

2849861 is a deficient number, since it is larger than the sum of its proper divisors (664507).

2849861 is a wasteful number, since it uses less digits than its factorization.

2849861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its digits is 27648, while the sum is 38.

The square root of 2849861 is about 1688.1531328644. The cubic root of 2849861 is about 141.7776889030. Note that the first 3 decimals are identical.

The spelling of 2849861 in words is "two million, eight hundred forty-nine thousand, eight hundred sixty-one".