2761289 has 6 divisors (see below), whose sum is σ = 2914650. Its totient is φ = 2615616.

The previous prime is 2761279. The next prime is 2761301. The reversal of 2761289 is 9821672.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 1092025 = 1292^2 + 1045^2 .

It is not a de Polignac number, because 2761289 - 2¹² = 2757193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2761229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3464 + ... + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (485775).

2^2761289 is an apocalyptic number.

It is an amenable number.

2761289 is a deficient number, since it is larger than the sum of its proper divisors (153361).

2761289 is an equidigital number, since it uses as much as digits as its factorization.

2761289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687 (or 7668 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2761289 is about 1661.7126707106. The cubic root of 2761289 is about 140.2934152362.

It can be divided in two parts, 27 and 61289, that added together give a palindrome (61316).

The spelling of 2761289 in words is "two million, seven hundred sixty-one thousand, two hundred eighty-nine".