1173856628 has 12 divisors (see below), whose sum is σ = 2347713312. Its totient is φ = 503081400.

The previous prime is 1173856627. The next prime is 1173856639. The reversal of 1173856628 is 8266583711.

1173856628 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173856627) 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 3 ways as a sum of consecutive naturals, for example, 20961698 + ... + 20961753.

It is an arithmetic number, because the mean of its divisors is an integer number (195642776).

Almost surely, 2^1173856628 is an apocalyptic number.

It is an amenable number.

1173856628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1173856628 is a wasteful number, since it uses less digits than its factorization.

1173856628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41923462 (or 41923460 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 1173856628 is about 34261.5911481064. The cubic root of 1173856628 is about 1054.8847617891.

The spelling of 1173856628 in words is "one billion, one hundred seventy-three million, eight hundred fifty-six thousand, six hundred twenty-eight".