1197778 has 8 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 579540.

The previous prime is 1197767. The next prime is 1197799. The reversal of 1197778 is 8777911.

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

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1197778.

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, 9598 + ... + 9721.

It is an arithmetic number, because the mean of its divisors is an integer number (231840).

2^1197778 is an apocalyptic number.

1197778 is a deficient number, since it is larger than the sum of its proper divisors (656942).

1197778 is a wasteful number, since it uses less digits than its factorization.

1197778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19352.

The product of its digits is 24696, while the sum is 40.

The square root of 1197778 is about 1094.4304454829. The cubic root of 1197778 is about 106.2002267448.

The spelling of 1197778 in words is "one million, one hundred ninety-seven thousand, seven hundred seventy-eight".