2986643 has 6 divisors (see below), whose sum is σ = 3282972. Its totient is φ = 2715020.

The previous prime is 2986637. The next prime is 2986657. The reversal of 2986643 is 3466892.

2986643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2986643 - 2⁶ = 2986579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2986597 and 2986606.

It is not an unprimeable number, because it can be changed into a prime (2986663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12221 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (547162).

2^2986643 is an apocalyptic number.

2986643 is a deficient number, since it is larger than the sum of its proper divisors (296329).

2986643 is a wasteful number, since it uses less digits than its factorization.

2986643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24705 (or 24694 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 2986643 is about 1728.1906723507. The cubic root of 2986643 is about 144.0105927136.

Subtracting 2986643 from its reverse (3466892), we obtain a square (480249 = 693²).

The spelling of 2986643 in words is "two million, nine hundred eighty-six thousand, six hundred forty-three".