9428794481 has 2 divisors, whose sum is σ = 9428794482. Its totient is φ = 9428794480.

The previous prime is 9428794451. The next prime is 9428794577. The reversal of 9428794481 is 1844978249.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6808890256 + 2619904225 = 82516^2 + 51185^2 .

It is a cyclic number.

It is not a de Polignac number, because 9428794481 - 2¹⁴ = 9428778097 is a prime.

It is a super-2 number, since 2×9428794481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9428794451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714397240 + 4714397241.

It is an arithmetic number, because the mean of its divisors is an integer number (4714397241).

Almost surely, 2^9428794481 is an apocalyptic number.

It is an amenable number.

9428794481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9428794481 is an equidigital number, since it uses as much as digits as its factorization.

9428794481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 56.

The square root of 9428794481 is about 97101.9797995901. The cubic root of 9428794481 is about 2112.6070423964.

The spelling of 9428794481 in words is "nine billion, four hundred twenty-eight million, seven hundred ninety-four thousand, four hundred eighty-one".