1115863 has 8 divisors (see below), whose sum is σ = 1350432. Its totient is φ = 900096.

The previous prime is 1115857. The next prime is 1115879. The reversal of 1115863 is 3685111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115863 - 2⁵ = 1115831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570 + ... + 4807.

It is an arithmetic number, because the mean of its divisors is an integer number (168804).

2^1115863 is an apocalyptic number.

1115863 is a deficient number, since it is larger than the sum of its proper divisors (234569).

1115863 is an equidigital number, since it uses as much as digits as its factorization.

1115863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401.

The product of its digits is 720, while the sum is 25.

The square root of 1115863 is about 1056.3441674000. The cubic root of 1115863 is about 103.7218591119.

The spelling of 1115863 in words is "one million, one hundred fifteen thousand, eight hundred sixty-three".