2653309 has 6 divisors (see below), whose sum is σ = 2818874. Its totient is φ = 2496960.

The previous prime is 2653271. The next prime is 2653319. The reversal of 2653309 is 9033562.

It can be written as a sum of positive squares in 3 ways, for example, as 1265625 + 1387684 = 1125^2 + 1178^2 .

It is not a de Polignac number, because 2653309 - 2¹⁷ = 2522237 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 (2653319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4302 + ... + 4879.

2^2653309 is an apocalyptic number.

It is an amenable number.

2653309 is a deficient number, since it is larger than the sum of its proper divisors (165565).

2653309 is an equidigital number, since it uses as much as digits as its factorization.

2653309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215 (or 9198 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 2653309 is about 1628.8980938045. The cubic root of 2653309 is about 138.4403249631.

It can be divided in two parts, 26 and 53309, that added together give a palindrome (53335).

The spelling of 2653309 in words is "two million, six hundred fifty-three thousand, three hundred nine".