2035891 has 16 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 1631520.

The previous prime is 2035879. The next prime is 2035919. The reversal of 2035891 is 1985302.

It is not a de Polignac number, because 2035891 - 2⁷ = 2035763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2035841) 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 15 ways as a sum of consecutive naturals, for example, 2980 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (156240).

2^2035891 is an apocalyptic number.

2035891 is a deficient number, since it is larger than the sum of its proper divisors (463949).

2035891 is a wasteful number, since it uses less digits than its factorization.

2035891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2035891 is about 1426.8465229309. The cubic root of 2035891 is about 126.7413048874.

It can be divided in two parts, 20358 and 91, that added together give a square (20449 = 143²).

The spelling of 2035891 in words is "two million, thirty-five thousand, eight hundred ninety-one".