1198667 has 4 divisors (see below), whose sum is σ = 1213920. Its totient is φ = 1183416.

The previous prime is 1198661. The next prime is 1198669. The reversal of 1198667 is 7668911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1198667 - 2⁴ = 1198651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1198667.

It is not an unprimeable number, because it can be changed into a prime (1198661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7508 + ... + 7665.

It is an arithmetic number, because the mean of its divisors is an integer number (303480).

2^1198667 is an apocalyptic number.

1198667 is a deficient number, since it is larger than the sum of its proper divisors (15253).

1198667 is an equidigital number, since it uses as much as digits as its factorization.

1198667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252.

The product of its digits is 18144, while the sum is 38.

The square root of 1198667 is about 1094.8365174765. The cubic root of 1198667 is about 106.2264944543.

The spelling of 1198667 in words is "one million, one hundred ninety-eight thousand, six hundred sixty-seven".