1188867 has 8 divisors (see below), whose sum is σ = 1597120. Its totient is φ = 786600.

The previous prime is 1188857. The next prime is 1188899. The reversal of 1188867 is 7688811.

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

It is not a de Polignac number, because 1188867 - 2⁴ = 1188851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1188857) 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, 1009 + ... + 1842.

It is an arithmetic number, because the mean of its divisors is an integer number (199640).

2^1188867 is an apocalyptic number.

1188867 is a deficient number, since it is larger than the sum of its proper divisors (408253).

1188867 is a wasteful number, since it uses less digits than its factorization.

1188867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993.

The product of its digits is 21504, while the sum is 39.

The square root of 1188867 is about 1090.3517780973. The cubic root of 1188867 is about 105.9362082055.

The spelling of 1188867 in words is "one million, one hundred eighty-eight thousand, eight hundred sixty-seven".