1123887 has 8 divisors (see below), whose sum is σ = 1586736. Its totient is φ = 705152.

The previous prime is 1123883. The next prime is 1123897. The reversal of 1123887 is 7883211.

It is a happy number.

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 1123887 - 2² = 1123883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123883) 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, 10968 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (198342).

2^1123887 is an apocalyptic number.

1123887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1123887 is a deficient number, since it is larger than the sum of its proper divisors (462849).

1123887 is a wasteful number, since it uses less digits than its factorization.

1123887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057.

The product of its digits is 2688, while the sum is 30.

The square root of 1123887 is about 1060.1353687148. The cubic root of 1123887 is about 103.9698815645.

It can be divided in two parts, 11238 and 87, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1123887 in words is "one million, one hundred twenty-three thousand, eight hundred eighty-seven".