2857965 has 16 divisors (see below), whose sum is σ = 4988736. Its totient is φ = 1385600.

The previous prime is 2857951. The next prime is 2857973. The reversal of 2857965 is 5697582.

It is not a de Polignac number, because 2857965 - 2⁴ = 2857949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8496 + ... + 8825.

It is an arithmetic number, because the mean of its divisors is an integer number (311796).

2^2857965 is an apocalyptic number.

It is an amenable number.

2857965 is a deficient number, since it is larger than the sum of its proper divisors (2130771).

2857965 is a wasteful number, since it uses less digits than its factorization.

2857965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340.

The product of its digits is 151200, while the sum is 42.

The square root of 2857965 is about 1690.5516851016. The cubic root of 2857965 is about 141.9119503077.

The spelling of 2857965 in words is "two million, eight hundred fifty-seven thousand, nine hundred sixty-five".