2851973 has 2 divisors, whose sum is σ = 2851974. Its totient is φ = 2851972.

The previous prime is 2851951. The next prime is 2851991. The reversal of 2851973 is 3791582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2184484 + 667489 = 1478^2 + 817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2851973 - 2⁶ = 2851909 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2851943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425986 + 1425987.

It is an arithmetic number, because the mean of its divisors is an integer number (1425987).

2^2851973 is an apocalyptic number.

It is an amenable number.

2851973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851973 is an equidigital number, since it uses as much as digits as its factorization.

2851973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 2851973 is about 1688.7785526824. The cubic root of 2851973 is about 141.8127035394.

The spelling of 2851973 in words is "two million, eight hundred fifty-one thousand, nine hundred seventy-three".