2857983 has 16 divisors (see below), whose sum is σ = 3993600. Its totient is φ = 1815840.

The previous prime is 2857973. The next prime is 2857993. The reversal of 2857983 is 3897582.

It is an interprime number because it is at equal distance from previous prime (2857973) and next prime (2857993).

It is not a de Polignac number, because 2857983 - 2⁵ = 2857951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7153 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (249600).

2^2857983 is an apocalyptic number.

2857983 is a deficient number, since it is larger than the sum of its proper divisors (1135617).

2857983 is a wasteful number, since it uses less digits than its factorization.

2857983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 120960, while the sum is 42.

The square root of 2857983 is about 1690.5570087992. The cubic root of 2857983 is about 141.9122482364.

The spelling of 2857983 in words is "two million, eight hundred fifty-seven thousand, nine hundred eighty-three".