1123878 has 16 divisors (see below), whose sum is σ = 2568960. Its totient is φ = 321096.

The previous prime is 1123873. The next prime is 1123879. The reversal of 1123878 is 8783211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123873) 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, 13338 + ... + 13421.

It is an arithmetic number, because the mean of its divisors is an integer number (160560).

2^1123878 is an apocalyptic number.

1123878 is an abundant number, since it is smaller than the sum of its proper divisors (1445082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123878 is a wasteful number, since it uses less digits than its factorization.

1123878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26771.

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

The square root of 1123878 is about 1060.1311239653. The cubic root of 1123878 is about 103.9696040362.

The spelling of 1123878 in words is "one million, one hundred twenty-three thousand, eight hundred seventy-eight".