2663273 has 4 divisors (see below), whose sum is σ = 2755140. Its totient is φ = 2571408.

The previous prime is 2663267. The next prime is 2663279. The reversal of 2663273 is 3723662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3723662 = 2 ⋅1861831.

It is an interprime number because it is at equal distance from previous prime (2663267) and next prime (2663279).

It can be written as a sum of positive squares in 2 ways, for example, as 994009 + 1669264 = 997^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663273 - 2⁶ = 2663209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 91837 = 2663273 / (2 + 6 + 6 + 3 + 2 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2663279) 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, 45890 + ... + 45947.

It is an arithmetic number, because the mean of its divisors is an integer number (688785).

2^2663273 is an apocalyptic number.

It is an amenable number.

2663273 is a deficient number, since it is larger than the sum of its proper divisors (91867).

2663273 is an equidigital number, since it uses as much as digits as its factorization.

2663273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91866.

The product of its digits is 9072, while the sum is 29.

The square root of 2663273 is about 1631.9537370894. The cubic root of 2663273 is about 138.6134039719.

The spelling of 2663273 in words is "two million, six hundred sixty-three thousand, two hundred seventy-three".