1056859 has 4 divisors (see below), whose sum is σ = 1062880. Its totient is φ = 1050840.

The previous prime is 1056833. The next prime is 1056863. The reversal of 1056859 is 9586501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9586501 = 29 ⋅330569.

It is a cyclic number.

It is not a de Polignac number, because 1056859 - 2⁹ = 1056347 is a prime.

It is a super-3 number, since 3×1056859³ = 3541378979138543337, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (265720).

2^1056859 is an apocalyptic number.

1056859 is a deficient number, since it is larger than the sum of its proper divisors (6021).

1056859 is an equidigital number, since it uses as much as digits as its factorization.

1056859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1056859 is about 1028.0364779520. The cubic root of 1056859 is about 101.8604717888.

The spelling of 1056859 in words is "one million, fifty-six thousand, eight hundred fifty-nine".