2761889 has 4 divisors (see below), whose sum is σ = 2974356. Its totient is φ = 2549424.

The previous prime is 2761877. The next prime is 2761901. The reversal of 2761889 is 9881672.

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

It is an interprime number because it is at equal distance from previous prime (2761877) and next prime (2761901).

It can be written as a sum of positive squares in 2 ways, for example, as 966289 + 1795600 = 983^2 + 1340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2761889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2761819) 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, 106214 + ... + 106239.

It is an arithmetic number, because the mean of its divisors is an integer number (743589).

2^2761889 is an apocalyptic number.

It is an amenable number.

2761889 is a deficient number, since it is larger than the sum of its proper divisors (212467).

2761889 is a wasteful number, since it uses less digits than its factorization.

2761889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212466.

The product of its digits is 48384, while the sum is 41.

The square root of 2761889 is about 1661.8931975311. The cubic root of 2761889 is about 140.3035759441.

It can be divided in two parts, 27 and 61889, that added together give a palindrome (61916).

The spelling of 2761889 in words is "two million, seven hundred sixty-one thousand, eight hundred eighty-nine".