1197631968 has 96 divisors (see below), whose sum is σ = 3436384896. Its totient is φ = 362976768.

The previous prime is 1197631961. The next prime is 1197632003. The reversal of 1197631968 is 8691367911.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1197631968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197631961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76455 + ... + 90777.

It is an arithmetic number, because the mean of its divisors is an integer number (35795676).

Almost surely, 2^1197631968 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 1197631968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718192448).

1197631968 is an abundant number, since it is smaller than the sum of its proper divisors (2238752928).

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

1197631968 is a wasteful number, since it uses less digits than its factorization.

1197631968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416 (or 14408 counting only the distinct ones).

The product of its digits is 489888, while the sum is 51.

The square root of 1197631968 is about 34606.8196747404. The cubic root of 1197631968 is about 1061.9591062452.

The spelling of 1197631968 in words is "one billion, one hundred ninety-seven million, six hundred thirty-one thousand, nine hundred sixty-eight".