2856673 has 2 divisors, whose sum is σ = 2856674. Its totient is φ = 2856672.

The previous prime is 2856653. The next prime is 2856677. The reversal of 2856673 is 3766582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2024929 + 831744 = 1423^2 + 912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2856673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2856677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428336 + 1428337.

It is an arithmetic number, because the mean of its divisors is an integer number (1428337).

2^2856673 is an apocalyptic number.

It is an amenable number.

2856673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2856673 is an equidigital number, since it uses as much as digits as its factorization.

2856673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 2856673 is about 1690.1695181253. The cubic root of 2856673 is about 141.8905623765.

Subtracting 2856673 from its reverse (3766582), we obtain a palindrome (909909).

The spelling of 2856673 in words is "two million, eight hundred fifty-six thousand, six hundred seventy-three".