2801943 has 12 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 1861056.

The previous prime is 2801941. The next prime is 2801971. The reversal of 2801943 is 3491082.

It is not a de Polignac number, because 2801943 - 2¹ = 2801941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801941) 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, 3538 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (338520).

2^2801943 is an apocalyptic number.

2801943 is a deficient number, since it is larger than the sum of its proper divisors (1260297).

2801943 is a wasteful number, since it uses less digits than its factorization.

2801943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2801943 is about 1673.9005346794. The cubic root of 2801943 is about 140.9785692493.

The spelling of 2801943 in words is "two million, eight hundred one thousand, nine hundred forty-three".