9813493 has 2 divisors, whose sum is σ = 9813494. Its totient is φ = 9813492.

The previous prime is 9813491. The next prime is 9813499. The reversal of 9813493 is 3943189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 1844164 = 2823^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 9813493 - 2¹ = 9813491 is a prime.

It is a super-2 number, since 2×9813493² = 192609289722098, which contains 22 as substring.

Together with 9813491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9813491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4906746 + 4906747.

It is an arithmetic number, because the mean of its divisors is an integer number (4906747).

Almost surely, 2^9813493 is an apocalyptic number.

It is an amenable number.

9813493 is a deficient number, since it is larger than the sum of its proper divisors (1).

9813493 is an equidigital number, since it uses as much as digits as its factorization.

9813493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 9813493 is about 3132.6495175809. The cubic root of 9813493 is about 214.0956642775.

The spelling of 9813493 in words is "nine million, eight hundred thirteen thousand, four hundred ninety-three".