1063861 has 4 divisors (see below), whose sum is σ = 1092652. Its totient is φ = 1035072.

The previous prime is 1063849. The next prime is 1063871. The reversal of 1063861 is 1683601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 970225 + 93636 = 985^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063861 - 2¹⁹ = 539573 is a prime.

It is a super-2 number, since 2×1063861² = 2263600454642, 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 (1063831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14340 + ... + 14413.

It is an arithmetic number, because the mean of its divisors is an integer number (273163).

2^1063861 is an apocalyptic number.

1063861 is the 596-th hex number.

It is an amenable number.

1063861 is a deficient number, since it is larger than the sum of its proper divisors (28791).

1063861 is an equidigital number, since it uses as much as digits as its factorization.

1063861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28790.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1063861 is about 1031.4363770975. The cubic root of 1063861 is about 102.0849286252.

The spelling of 1063861 in words is "one million, sixty-three thousand, eight hundred sixty-one".