1056887 has 4 divisors (see below), whose sum is σ = 1138200. Its totient is φ = 975576.

The previous prime is 1056871. The next prime is 1056893. The reversal of 1056887 is 7886501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056887 - 2⁴ = 1056871 is a prime.

It is a super-2 number, since 2×1056887² = 2234020261538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40637 + ... + 40662.

It is an arithmetic number, because the mean of its divisors is an integer number (284550).

2^1056887 is an apocalyptic number.

1056887 is a deficient number, since it is larger than the sum of its proper divisors (81313).

1056887 is an equidigital number, since it uses as much as digits as its factorization.

1056887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81312.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1056887 is about 1028.0500960556. The cubic root of 1056887 is about 101.8613713310.

The spelling of 1056887 in words is "one million, fifty-six thousand, eight hundred eighty-seven".