2809253 has 2 divisors, whose sum is σ = 2809254. Its totient is φ = 2809252.

The previous prime is 2809249. The next prime is 2809271. The reversal of 2809253 is 3529082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1592644 + 1216609 = 1262^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 2809253 - 2² = 2809249 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 8⁶ + 0 + 9⁵ + 2²¹ + 5⁸ + 3³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2809223) 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 as a sum of consecutive naturals, namely, 1404626 + 1404627.

It is an arithmetic number, because the mean of its divisors is an integer number (1404627).

2^2809253 is an apocalyptic number.

It is an amenable number.

2809253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2809253 is an equidigital number, since it uses as much as digits as its factorization.

2809253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2809253 is about 1676.0826351943. The cubic root of 2809253 is about 141.1010626325.

The spelling of 2809253 in words is "two million, eight hundred nine thousand, two hundred fifty-three".