1170565979 has 12 divisors (see below), whose sum is σ = 1342599888. Its totient is φ = 1017881040.

The previous prime is 1170565961. The next prime is 1170566011. The reversal of 1170565979 is 9795650711.

It is a de Polignac number, because none of the positive numbers 2^k-1170565979 is a prime.

It is a super-2 number, since 2×1170565979² = 2740449422384456882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1170565919) 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 11 ways as a sum of consecutive naturals, for example, 207524 + ... + 213089.

It is an arithmetic number, because the mean of its divisors is an integer number (111883324).

Almost surely, 2^1170565979 is an apocalyptic number.

1170565979 is a deficient number, since it is larger than the sum of its proper divisors (172033909).

1170565979 is a wasteful number, since it uses less digits than its factorization.

1170565979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420658 (or 420647 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 50.

The square root of 1170565979 is about 34213.5350263605. The cubic root of 1170565979 is about 1053.8981267667.

The spelling of 1170565979 in words is "one billion, one hundred seventy million, five hundred sixty-five thousand, nine hundred seventy-nine".