1172476979 has 8 divisors (see below), whose sum is σ = 1204788480. Its totient is φ = 1140198336.

The previous prime is 1172476939. The next prime is 1172476997. The reversal of 1172476979 is 9796742711.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172476979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172476979.

It is not an unprimeable number, because it can be changed into a prime (1172476939) 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, 75767 + ... + 89919.

It is an arithmetic number, because the mean of its divisors is an integer number (150598560).

Almost surely, 2^1172476979 is an apocalyptic number.

1172476979 is a deficient number, since it is larger than the sum of its proper divisors (32311501).

1172476979 is a wasteful number, since it uses less digits than its factorization.

1172476979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429.

The product of its digits is 1333584, while the sum is 53.

The square root of 1172476979 is about 34241.4511812803. The cubic root of 1172476979 is about 1054.4713265033.

The spelling of 1172476979 in words is "one billion, one hundred seventy-two million, four hundred seventy-six thousand, nine hundred seventy-nine".