9379294721 has 4 divisors (see below), whose sum is σ = 9379577412. Its totient is φ = 9379012032.

The previous prime is 9379294693. The next prime is 9379294739. The reversal of 9379294721 is 1274929739.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1274929739 = 17 ⋅74995867.

It can be written as a sum of positive squares in 2 ways, for example, as 4460236225 + 4919058496 = 66785^2 + 70136^2 .

It is a cyclic number.

It is not a de Polignac number, because 9379294721 - 2⁶ = 9379294657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9379294921) 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, 83756 + ... + 160541.

It is an arithmetic number, because the mean of its divisors is an integer number (2344894353).

Almost surely, 2^9379294721 is an apocalyptic number.

It is an amenable number.

9379294721 is a deficient number, since it is larger than the sum of its proper divisors (282691).

9379294721 is a wasteful number, since it uses less digits than its factorization.

9379294721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282690.

The product of its digits is 1714608, while the sum is 53.

The square root of 9379294721 is about 96846.7589597091. The cubic root of 9379294721 is about 2108.9035970312.

The spelling of 9379294721 in words is "nine billion, three hundred seventy-nine million, two hundred ninety-four thousand, seven hundred twenty-one".