1189668 has 12 divisors (see below), whose sum is σ = 2775920. Its totient is φ = 396552.

The previous prime is 1189651. The next prime is 1189673. The reversal of 1189668 is 8669811.

It is a tau number, because it is divible by the number of its divisors (12).

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, 49558 + ... + 49581.

2^1189668 is an apocalyptic number.

It is an amenable number.

1189668 is an abundant number, since it is smaller than the sum of its proper divisors (1586252).

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

1189668 is a wasteful number, since it uses less digits than its factorization.

1189668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99146 (or 99144 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1189668 is about 1090.7190288979. The cubic root of 1189668 is about 105.9599943966.

The spelling of 1189668 in words is "one million, one hundred eighty-nine thousand, six hundred sixty-eight".