2081894 has 4 divisors (see below), whose sum is σ = 3122844. Its totient is φ = 1040946.

The previous prime is 2081873. The next prime is 2081897. The reversal of 2081894 is 4981802.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2081894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520472 + ... + 520475.

It is an arithmetic number, because the mean of its divisors is an integer number (780711).

2^2081894 is an apocalyptic number.

2081894 is a deficient number, since it is larger than the sum of its proper divisors (1040950).

2081894 is a wasteful number, since it uses less digits than its factorization.

2081894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040949.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2081894 is about 1442.8769871337. The cubic root of 2081894 is about 127.6888192972.

The spelling of 2081894 in words is "two million, eighty-one thousand, eight hundred ninety-four".