2856395 has 4 divisors (see below), whose sum is σ = 3427680. Its totient is φ = 2285112.

The previous prime is 2856379. The next prime is 2856397. The reversal of 2856395 is 5936582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5936582 = 2 ⋅2968291.

It is a cyclic number.

It is not a de Polignac number, because 2856395 - 2⁴ = 2856379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2856397) 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, 285635 + ... + 285644.

It is an arithmetic number, because the mean of its divisors is an integer number (856920).

2^2856395 is an apocalyptic number.

2856395 is a deficient number, since it is larger than the sum of its proper divisors (571285).

2856395 is an equidigital number, since it uses as much as digits as its factorization.

2856395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571284.

The product of its digits is 64800, while the sum is 38.

The square root of 2856395 is about 1690.0872758529. The cubic root of 2856395 is about 141.8859594864.

The spelling of 2856395 in words is "two million, eight hundred fifty-six thousand, three hundred ninety-five".