1172879982 has 12 divisors (see below), whose sum is σ = 2541240000. Its totient is φ = 390959988.

The previous prime is 1172879959. The next prime is 1172879987. The reversal of 1172879982 is 2899782711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172879987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32579982 + ... + 32580017.

It is an arithmetic number, because the mean of its divisors is an integer number (211770000).

Almost surely, 2^1172879982 is an apocalyptic number.

1172879982 is an abundant number, since it is smaller than the sum of its proper divisors (1368360018).

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

1172879982 is a wasteful number, since it uses less digits than its factorization.

1172879982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65160007 (or 65160004 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 1172879982 is about 34247.3353999986. The cubic root of 1172879982 is about 1054.5921267227.

The spelling of 1172879982 in words is "one billion, one hundred seventy-two million, eight hundred seventy-nine thousand, nine hundred eighty-two".