2881273 has 2 divisors, whose sum is σ = 2881274. Its totient is φ = 2881272.

The previous prime is 2881271. The next prime is 2881289. The reversal of 2881273 is 3721882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1721344 + 1159929 = 1312^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 2881273 - 2¹ = 2881271 is a prime.

Together with 2881271, it forms a pair of twin primes.

It is equal to p₂₀₈₈₅₈ and since 2881273 and 208858 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2881271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440636 + 1440637.

It is an arithmetic number, because the mean of its divisors is an integer number (1440637).

2^2881273 is an apocalyptic number.

It is an amenable number.

2881273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881273 is an equidigital number, since it uses as much as digits as its factorization.

2881273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 2881273 is about 1697.4312946332. The cubic root of 2881273 is about 142.2966917083.

The spelling of 2881273 in words is "two million, eight hundred eighty-one thousand, two hundred seventy-three".