1197888 has 56 divisors (see below), whose sum is σ = 3364992. Its totient is φ = 374784.

The previous prime is 1197881. The next prime is 1197901. The reversal of 1197888 is 8887911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3081 + ... + 3447.

2^1197888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682496).

1197888 is an abundant number, since it is smaller than the sum of its proper divisors (2167104).

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

1197888 is a wasteful number, since it uses less digits than its factorization.

1197888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 389 counting only the distinct ones).

The product of its digits is 32256, while the sum is 42.

The square root of 1197888 is about 1094.4806987791. The cubic root of 1197888 is about 106.2034776721.

The spelling of 1197888 in words is "one million, one hundred ninety-seven thousand, eight hundred eighty-eight".