2043851 has 2 divisors, whose sum is σ = 2043852. Its totient is φ = 2043850.

The previous prime is 2043841. The next prime is 2043869. The reversal of 2043851 is 1583402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2043851 - 2¹⁸ = 1781707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2043841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021925 + 1021926.

It is an arithmetic number, because the mean of its divisors is an integer number (1021926).

2^2043851 is an apocalyptic number.

2043851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043851 is an equidigital number, since it uses as much as digits as its factorization.

2043851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2043851 is about 1429.6331697327. The cubic root of 2043851 is about 126.9062693197.

The spelling of 2043851 in words is "two million, forty-three thousand, eight hundred fifty-one".