1197799488 has 98 divisors (see below), whose sum is σ = 3563833614. Its totient is φ = 399250944.

The previous prime is 1197799459. The next prime is 1197799531. The reversal of 1197799488 is 8849977911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1150023744 + 47775744 = 33912^2 + 6912^2 .

It is a super-2 number, since 2×1197799488² = 2869447226906124288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 33820 + ... + 59492.

Almost surely, 2^1197799488 is an apocalyptic number.

1197799488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197799488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781916807).

1197799488 is an abundant number, since it is smaller than the sum of its proper divisors (2366034126).

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

1197799488 is an frugal number, since it uses more digits than its factorization.

1197799488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25703 (or 25678 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 63.

The square root of 1197799488 is about 34609.2399223098. The cubic root of 1197799488 is about 1062.0086181432.

The spelling of 1197799488 in words is "one billion, one hundred ninety-seven million, seven hundred ninety-nine thousand, four hundred eighty-eight".