2054891 has 4 divisors (see below), whose sum is σ = 2062800. Its totient is φ = 2046984.

The previous prime is 2054881. The next prime is 2054903. The reversal of 2054891 is 1984502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2054891 - 2¹⁴ = 2038507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3551 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (515700).

2^2054891 is an apocalyptic number.

2054891 is a deficient number, since it is larger than the sum of its proper divisors (7909).

2054891 is an equidigital number, since it uses as much as digits as its factorization.

2054891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2054891 is about 1433.4891000632. The cubic root of 2054891 is about 127.1343567459.

The spelling of 2054891 in words is "two million, fifty-four thousand, eight hundred ninety-one".