1113978 has 16 divisors (see below), whose sum is σ = 2238336. Its totient is φ = 369600.

The previous prime is 1113971. The next prime is 1113991. The reversal of 1113978 is 8793111.

It is not an unprimeable number, because it can be changed into a prime (1113971) 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, 2175 + ... + 2637.

It is an arithmetic number, because the mean of its divisors is an integer number (139896).

2^1113978 is an apocalyptic number.

1113978 is an abundant number, since it is smaller than the sum of its proper divisors (1124358).

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

1113978 is a wasteful number, since it uses less digits than its factorization.

1113978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 1512, while the sum is 30.

The square root of 1113978 is about 1055.4515621287. The cubic root of 1113978 is about 103.6634212627.

The spelling of 1113978 in words is "one million, one hundred thirteen thousand, nine hundred seventy-eight".