1172120684 has 24 divisors (see below), whose sum is σ = 2348175648. Its totient is φ = 501494400.

The previous prime is 1172120683. The next prime is 1172120689. The reversal of 1172120684 is 4860212711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172120684.

It is not an unprimeable number, because it can be changed into a prime (1172120683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17999 + ... + 51654.

It is an arithmetic number, because the mean of its divisors is an integer number (97840652).

Almost surely, 2^1172120684 is an apocalyptic number.

1172120684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1172120684 is an abundant number, since it is smaller than the sum of its proper divisors (1176054964).

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

1172120684 is a wasteful number, since it uses less digits than its factorization.

1172120684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70265 (or 70263 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1172120684 is about 34236.2481005148. The cubic root of 1172120684 is about 1054.3645039584.

The spelling of 1172120684 in words is "one billion, one hundred seventy-two million, one hundred twenty thousand, six hundred eighty-four".