2743889 has 4 divisors (see below), whose sum is σ = 2761524. Its totient is φ = 2726256.

The previous prime is 2743861. The next prime is 2743901. The reversal of 2743889 is 9883472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 2265025 = 692^2 + 1505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2743889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2743849) 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, 8582 + ... + 8895.

It is an arithmetic number, because the mean of its divisors is an integer number (690381).

2^2743889 is an apocalyptic number.

It is an amenable number.

2743889 is a deficient number, since it is larger than the sum of its proper divisors (17635).

2743889 is a wasteful number, since it uses less digits than its factorization.

2743889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17634.

The product of its digits is 96768, while the sum is 41.

The square root of 2743889 is about 1656.4688345997. The cubic root of 2743889 is about 139.9981122194.

The spelling of 2743889 in words is "two million, seven hundred forty-three thousand, eight hundred eighty-nine".