5673281 has 2 divisors, whose sum is σ = 5673282. Its totient is φ = 5673280.

The previous prime is 5673259. The next prime is 5673287. The reversal of 5673281 is 1823765.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3671056 + 2002225 = 1916^2 + 1415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5673281 is a prime.

It is a super-2 number, since 2×5673281² = 64372234609922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5673287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2836640 + 2836641.

It is an arithmetic number, because the mean of its divisors is an integer number (2836641).

Almost surely, 2^5673281 is an apocalyptic number.

It is an amenable number.

5673281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5673281 is an equidigital number, since it uses as much as digits as its factorization.

5673281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 5673281 is about 2381.8650255630. The cubic root of 5673281 is about 178.3520470264.

It can be divided in two parts, 56 and 73281, that added together give a palindrome (73337).

The spelling of 5673281 in words is "five million, six hundred seventy-three thousand, two hundred eighty-one".