2061889 has 4 divisors (see below), whose sum is σ = 2065840. Its totient is φ = 2057940.

The previous prime is 2061887. The next prime is 2061907. The reversal of 2061889 is 9881602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2061889 - 2¹ = 2061887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061883) 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, 1047 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (516460).

2^2061889 is an apocalyptic number.

It is an amenable number.

2061889 is a deficient number, since it is larger than the sum of its proper divisors (3951).

2061889 is an equidigital number, since it uses as much as digits as its factorization.

2061889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2061889 is about 1435.9279229822. The cubic root of 2061889 is about 127.2785133269.

The spelling of 2061889 in words is "two million, sixty-one thousand, eight hundred eighty-nine".