2856373 has 4 divisors (see below), whose sum is σ = 3076108. Its totient is φ = 2636640.

The previous prime is 2856353. The next prime is 2856377. The reversal of 2856373 is 3736582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3736582 = 2 ⋅1868291.

It can be written as a sum of positive squares in 2 ways, for example, as 552049 + 2304324 = 743^2 + 1518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2856373 is a prime.

It is a Duffinian number.

2856373 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109848 + ... + 109873.

It is an arithmetic number, because the mean of its divisors is an integer number (769027).

2^2856373 is an apocalyptic number.

It is an amenable number.

2856373 is a deficient number, since it is larger than the sum of its proper divisors (219735).

2856373 is a wasteful number, since it uses less digits than its factorization.

2856373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219734.

The product of its digits is 30240, while the sum is 34.

The square root of 2856373 is about 1690.0807673008. The cubic root of 2856373 is about 141.8855952162.

The spelling of 2856373 in words is "two million, eight hundred fifty-six thousand, three hundred seventy-three".