2052891 has 16 divisors (see below), whose sum is σ = 3068800. Its totient is φ = 1356264.

The previous prime is 2052889. The next prime is 2052899. The reversal of 2052891 is 1982502.

It is not a de Polignac number, because 2052891 - 2¹ = 2052889 is a prime.

It is a super-2 number, since 2×2052891² = 8428722915762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2052899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3480 + ... + 4026.

It is an arithmetic number, because the mean of its divisors is an integer number (191800).

2^2052891 is an apocalyptic number.

2052891 is a deficient number, since it is larger than the sum of its proper divisors (1015909).

2052891 is a wasteful number, since it uses less digits than its factorization.

2052891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2052891 is about 1432.7913316321. The cubic root of 2052891 is about 127.0930972581.

The spelling of 2052891 in words is "two million, fifty-two thousand, eight hundred ninety-one".