7047234921 has 4 divisors (see below), whose sum is σ = 9396313232. Its totient is φ = 4698156612.

The previous prime is 7047234917. The next prime is 7047234967. The reversal of 7047234921 is 1294327407.

7047234921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7047234921 - 2² = 7047234917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7047234921.

It is not an unprimeable number, because it can be changed into a prime (7047234911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174539151 + ... + 1174539156.

It is an arithmetic number, because the mean of its divisors is an integer number (2349078308).

Almost surely, 2^7047234921 is an apocalyptic number.

It is an amenable number.

7047234921 is a deficient number, since it is larger than the sum of its proper divisors (2349078311).

7047234921 is a wasteful number, since it uses less digits than its factorization.

7047234921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349078310.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 7047234921 is about 83947.8106980760. The cubic root of 7047234921 is about 1917.2242624426.

The spelling of 7047234921 in words is "seven billion, forty-seven million, two hundred thirty-four thousand, nine hundred twenty-one".