9419813 has 4 divisors (see below), whose sum is σ = 10144428. Its totient is φ = 8695200.

The previous prime is 9419807. The next prime is 9419831. The reversal of 9419813 is 3189149.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3189149 = 17 ⋅187597.

It can be written as a sum of positive squares in 2 ways, for example, as 6315169 + 3104644 = 2513^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 9419813 - 2⁴ = 9419797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9419863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362288 + ... + 362313.

It is an arithmetic number, because the mean of its divisors is an integer number (2536107).

Almost surely, 2^9419813 is an apocalyptic number.

It is an amenable number.

9419813 is a deficient number, since it is larger than the sum of its proper divisors (724615).

9419813 is a wasteful number, since it uses less digits than its factorization.

9419813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724614.

The product of its digits is 7776, while the sum is 35.

The square root of 9419813 is about 3069.1713865472. The cubic root of 9419813 is about 211.1936035162.

The spelling of 9419813 in words is "nine million, four hundred nineteen thousand, eight hundred thirteen".