1163998 has 16 divisors (see below), whose sum is σ = 1922544. Its totient is φ = 524160.

The previous prime is 1163993. The next prime is 1164001. The reversal of 1163998 is 8993611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (120159).

2^1163998 is an apocalyptic number.

1163998 is a deficient number, since it is larger than the sum of its proper divisors (758546).

1163998 is a wasteful number, since it uses less digits than its factorization.

1163998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its digits is 11664, while the sum is 37.

The square root of 1163998 is about 1078.8873898605. The cubic root of 1163998 is about 105.1923307840.

It can be divided in two parts, 116 and 3998, that added together give a palindrome (4114).

The spelling of 1163998 in words is "one million, one hundred sixty-three thousand, nine hundred ninety-eight".