2670289 has 4 divisors (see below), whose sum is σ = 2735460. Its totient is φ = 2605120.

The previous prime is 2670223. The next prime is 2670301. The reversal of 2670289 is 9820762.

2670289 = 82² + 83² + ... + 204².

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 173889 + 2496400 = 417^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670289 - 2¹¹ = 2668241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670589) 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, 32524 + ... + 32605.

It is an arithmetic number, because the mean of its divisors is an integer number (683865).

2^2670289 is an apocalyptic number.

It is an amenable number.

2670289 is a deficient number, since it is larger than the sum of its proper divisors (65171).

2670289 is an equidigital number, since it uses as much as digits as its factorization.

2670289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65170.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2670289 is about 1634.1018940078. The cubic root of 2670289 is about 138.7350161023.

The spelling of 2670289 in words is "two million, six hundred seventy thousand, two hundred eighty-nine".