2861443 has 8 divisors (see below), whose sum is σ = 3112928. Its totient is φ = 2614464.

The previous prime is 2861399. The next prime is 2861447. The reversal of 2861443 is 3441682.

2861443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2861443 - 2⁹ = 2860931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2861447) 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 7 ways as a sum of consecutive naturals, for example, 271 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (389116).

2^2861443 is an apocalyptic number.

2861443 is a deficient number, since it is larger than the sum of its proper divisors (251485).

2861443 is a wasteful number, since it uses less digits than its factorization.

2861443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253.

The product of its digits is 4608, while the sum is 28.

The square root of 2861443 is about 1691.5800306223. The cubic root of 2861443 is about 141.9694935458.

The spelling of 2861443 in words is "two million, eight hundred sixty-one thousand, four hundred forty-three".