1173945928 has 8 divisors (see below), whose sum is σ = 2201148630. Its totient is φ = 586972960.

The previous prime is 1173945917. The next prime is 1173945937. The reversal of 1173945928 is 8295493711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 748679044 + 425266884 = 27362^2 + 20622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×1173945928³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 73371613 + ... + 73371628.

Almost surely, 2^1173945928 is an apocalyptic number.

It is an amenable number.

1173945928 is a deficient number, since it is larger than the sum of its proper divisors (1027202702).

1173945928 is a wasteful number, since it uses less digits than its factorization.

1173945928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146743247 (or 146743243 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 1173945928 is about 34262.8943319154. The cubic root of 1173945928 is about 1054.9115108878.

The spelling of 1173945928 in words is "one billion, one hundred seventy-three million, nine hundred forty-five thousand, nine hundred twenty-eight".