9481993 has 2 divisors, whose sum is σ = 9481994. Its totient is φ = 9481992.

The previous prime is 9481991. The next prime is 9481999. The reversal of 9481993 is 3991849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6285049 + 3196944 = 2507^2 + 1788^2 .

It is a cyclic number.

It is not a de Polignac number, because 9481993 - 2¹ = 9481991 is a prime.

Together with 9481991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9481991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4740996 + 4740997.

It is an arithmetic number, because the mean of its divisors is an integer number (4740997).

Almost surely, 2^9481993 is an apocalyptic number.

It is an amenable number.

9481993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9481993 is an equidigital number, since it uses as much as digits as its factorization.

9481993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 43.

The square root of 9481993 is about 3079.2844948137. The cubic root of 9481993 is about 211.6572797072.

The spelling of 9481993 in words is "nine million, four hundred eighty-one thousand, nine hundred ninety-three".