1055887 has 16 divisors (see below), whose sum is σ = 1347840. Its totient is φ = 805248.

The previous prime is 1055881. The next prime is 1055893. The reversal of 1055887 is 7885501.

It is an interprime number because it is at equal distance from previous prime (1055881) and next prime (1055893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055887 is a prime.

It is a super-2 number, since 2×1055887² = 2229794713538, 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 (1055881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2028 + ... + 2494.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2^1055887 is an apocalyptic number.

1055887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1055887 is a deficient number, since it is larger than the sum of its proper divisors (291953).

1055887 is a wasteful number, since it uses less digits than its factorization.

1055887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 1055887 is about 1027.5636233343. The cubic root of 1055887 is about 101.8292349675.

The spelling of 1055887 in words is "one million, fifty-five thousand, eight hundred eighty-seven".