1171382979 has 8 divisors (see below), whose sum is σ = 1681985872. Its totient is φ = 720851040.

The previous prime is 1171382959. The next prime is 1171382983. The reversal of 1171382979 is 9792831711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1171382979 - 2¹² = 1171378883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171382929) 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, 15017692 + ... + 15017769.

It is an arithmetic number, because the mean of its divisors is an integer number (210248234).

Almost surely, 2^1171382979 is an apocalyptic number.

1171382979 is a deficient number, since it is larger than the sum of its proper divisors (510602893).

1171382979 is a wasteful number, since it uses less digits than its factorization.

1171382979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30035477.

The product of its digits is 190512, while the sum is 48.

The square root of 1171382979 is about 34225.4726629158. The cubic root of 1171382979 is about 1054.1432601870.

The spelling of 1171382979 in words is "one billion, one hundred seventy-one million, three hundred eighty-two thousand, nine hundred seventy-nine".