1197679860 has 144 divisors (see below), whose sum is σ = 4003743744. Its totient is φ = 287933184.

The previous prime is 1197679859. The next prime is 1197679867. The reversal of 1197679860 is 689767911.

It is a junction number, because it is equal to n+sod(n) for n = 1197679797 and 1197679806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197679867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94669 + ... + 106571.

It is an arithmetic number, because the mean of its divisors is an integer number (27803776).

Almost surely, 2^1197679860 is an apocalyptic number.

1197679860 is a gapful number since it is divisible by the number (10) 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 1197679860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2001871872).

1197679860 is an abundant number, since it is smaller than the sum of its proper divisors (2806063884).

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

1197679860 is a wasteful number, since it uses less digits than its factorization.

1197679860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11974 (or 11969 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 1197679860 is about 34607.5116123653. The cubic root of 1197679860 is about 1061.9732615865.

The spelling of 1197679860 in words is "one billion, one hundred ninety-seven million, six hundred seventy-nine thousand, eight hundred sixty".