1173867648 has 64 divisors (see below), whose sum is σ = 3138107520. Its totient is φ = 388776960.

The previous prime is 1173867647. The next prime is 1173867659. The reversal of 1173867648 is 8467683711.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1173867648.

It is not an unprimeable number, because it can be changed into a prime (1173867647) 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, 50553 + ... + 70023.

It is an arithmetic number, because the mean of its divisors is an integer number (49032930).

Almost surely, 2^1173867648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1173867648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569053760).

1173867648 is an abundant number, since it is smaller than the sum of its proper divisors (1964239872).

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

1173867648 is a wasteful number, since it uses less digits than its factorization.

1173867648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19645 (or 19633 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 1173867648 is about 34261.7519692149. The cubic root of 1173867648 is about 1054.8880628151. Note that the first 3 decimals are identical.

The spelling of 1173867648 in words is "one billion, one hundred seventy-three million, eight hundred sixty-seven thousand, six hundred forty-eight".