7734792921 has 8 divisors (see below), whose sum is σ = 10323882720. Its totient is φ = 5151115872.

The previous prime is 7734792883. The next prime is 7734792937. The reversal of 7734792921 is 1292974377.

7734792921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7734792921 - 2⁹ = 7734792409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7734792941) 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 7 ways as a sum of consecutive naturals, for example, 1349851 + ... + 1355568.

It is an arithmetic number, because the mean of its divisors is an integer number (1290485340).

Almost surely, 2^7734792921 is an apocalyptic number.

It is an amenable number.

7734792921 is a deficient number, since it is larger than the sum of its proper divisors (2589089799).

7734792921 is a wasteful number, since it uses less digits than its factorization.

7734792921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706375.

The product of its digits is 1333584, while the sum is 51.

The square root of 7734792921 is about 87947.6714927689. The cubic root of 7734792921 is about 1977.6505923591.

The spelling of 7734792921 in words is "seven billion, seven hundred thirty-four million, seven hundred ninety-two thousand, nine hundred twenty-one".