1171308979 has 8 divisors (see below), whose sum is σ = 1233469440. Its totient is φ = 1109199816.

The previous prime is 1171308973. The next prime is 1171308989. The reversal of 1171308979 is 9798031711.

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

It is a cyclic number.

It is not a de Polignac number, because 1171308979 - 2⁵ = 1171308947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171308973) 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, 39582 + ... + 62524.

It is an arithmetic number, because the mean of its divisors is an integer number (154183680).

Almost surely, 2^1171308979 is an apocalyptic number.

1171308979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1171308979 is a deficient number, since it is larger than the sum of its proper divisors (62160461).

1171308979 is a wasteful number, since it uses less digits than its factorization.

1171308979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25649.

The product of its (nonzero) digits is 95256, while the sum is 46.

The square root of 1171308979 is about 34224.3915796906. The cubic root of 1171308979 is about 1054.1210618553.

The spelling of 1171308979 in words is "one billion, one hundred seventy-one million, three hundred eight thousand, nine hundred seventy-nine".