2705489 has 4 divisors (see below), whose sum is σ = 2730420. Its totient is φ = 2680560.

The previous prime is 2705471. The next prime is 2705509. The reversal of 2705489 is 9845072.

It is a happy number.

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 1067089 + 1638400 = 1033^2 + 1280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705489 - 2¹² = 2701393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2705419) 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, 12302 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (682605).

2^2705489 is an apocalyptic number.

It is an amenable number.

2705489 is a deficient number, since it is larger than the sum of its proper divisors (24931).

2705489 is a wasteful number, since it uses less digits than its factorization.

2705489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24930.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2705489 is about 1644.8370739985. The cubic root of 2705489 is about 139.3419629177.

The spelling of 2705489 in words is "two million, seven hundred five thousand, four hundred eighty-nine".