1078855 has 4 divisors (see below), whose sum is σ = 1294632. Its totient is φ = 863080.

The previous prime is 1078853. The next prime is 1078873. The reversal of 1078855 is 5588701.

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

It is not a de Polignac number, because 1078855 - 2¹ = 1078853 is a prime.

It is a super-2 number, since 2×1078855² = 2327856222050, which contains 22 as substring.

It is a Duffinian number.

1078855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078853) 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, 107881 + ... + 107890.

It is an arithmetic number, because the mean of its divisors is an integer number (323658).

2^1078855 is an apocalyptic number.

1078855 is a deficient number, since it is larger than the sum of its proper divisors (215777).

1078855 is an equidigital number, since it uses as much as digits as its factorization.

1078855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215776.

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

The square root of 1078855 is about 1038.6794500711. The cubic root of 1078855 is about 102.5622861564.

The spelling of 1078855 in words is "one million, seventy-eight thousand, eight hundred fifty-five".