2857023 has 12 divisors (see below), whose sum is σ = 4444440. Its totient is φ = 1758096.

The previous prime is 2857013. The next prime is 2857039. The reversal of 2857023 is 3207582.

It is not a de Polignac number, because 2857023 - 2¹³ = 2848831 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857013) 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 11 ways as a sum of consecutive naturals, for example, 12093 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (370370).

2^2857023 is an apocalyptic number.

2857023 is a deficient number, since it is larger than the sum of its proper divisors (1587417).

2857023 is a wasteful number, since it uses less digits than its factorization.

2857023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24438 (or 24435 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2857023 is about 1690.2730548642. The cubic root of 2857023 is about 141.8963569575.

The spelling of 2857023 in words is "two million, eight hundred fifty-seven thousand, twenty-three".