921876768 has 48 divisors (see below), whose sum is σ = 2688809760. Its totient is φ = 307291968.

The previous prime is 921876763. The next prime is 921876811. The reversal of 921876768 is 867678129.

921876768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (921876763) 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, 532630 + ... + 534357.

It is an arithmetic number, because the mean of its divisors is an integer number (56016870).

Almost surely, 2^921876768 is an apocalyptic number.

It is an amenable number.

921876768 is an abundant number, since it is smaller than the sum of its proper divisors (1766932992).

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

921876768 is a wasteful number, since it uses less digits than its factorization.

921876768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067006 (or 1066992 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 921876768 is about 30362.4236186771. The cubic root of 921876768 is about 973.2497261435.

The spelling of 921876768 in words is "nine hundred twenty-one million, eight hundred seventy-six thousand, seven hundred sixty-eight".