1183978 has 8 divisors (see below), whose sum is σ = 1789920. Its totient is φ = 587340.

The previous prime is 1183969. The next prime is 1183981. The reversal of 1183978 is 8793811.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1998 + ... + 2521.

It is an arithmetic number, because the mean of its divisors is an integer number (223740).

2^1183978 is an apocalyptic number.

1183978 is a deficient number, since it is larger than the sum of its proper divisors (605942).

1183978 is a wasteful number, since it uses less digits than its factorization.

1183978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652.

The product of its digits is 12096, while the sum is 37.

The square root of 1183978 is about 1088.1075314508. The cubic root of 1183978 is about 105.7907942100.

It can be divided in two parts, 118 and 3978, that added together give a 12-th power (4096 = 2¹²).

The spelling of 1183978 in words is "one million, one hundred eighty-three thousand, nine hundred seventy-eight".