7953470321 has 4 divisors (see below), whose sum is σ = 8147457444. Its totient is φ = 7759483200.

The previous prime is 7953470297. The next prime is 7953470333. The reversal of 7953470321 is 1230743597.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1230743597 = 701 ⋅1755697.

It can be written as a sum of positive squares in 2 ways, for example, as 212110096 + 7741360225 = 14564^2 + 87985^2 .

It is a cyclic number.

It is not a de Polignac number, because 7953470321 - 2⁶ = 7953470257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 193987081 = 7953470321 / (7 + 9 + 5 + 3 + 4 + 7 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7953470351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96993500 + ... + 96993581.

It is an arithmetic number, because the mean of its divisors is an integer number (2036864361).

Almost surely, 2^7953470321 is an apocalyptic number.

It is an amenable number.

7953470321 is a deficient number, since it is larger than the sum of its proper divisors (193987123).

7953470321 is a wasteful number, since it uses less digits than its factorization.

7953470321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193987122.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 7953470321 is about 89182.2309711974. The cubic root of 7953470321 is about 1996.1149849656.

The spelling of 7953470321 in words is "seven billion, nine hundred fifty-three million, four hundred seventy thousand, three hundred twenty-one".