9893813 has 8 divisors (see below), whose sum is σ = 11027520. Its totient is φ = 8821440.

The previous prime is 9893809. The next prime is 9893831. The reversal of 9893813 is 3183989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9893813 - 2² = 9893809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9893803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14993 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (1378440).

Almost surely, 2^9893813 is an apocalyptic number.

It is an amenable number.

9893813 is a deficient number, since it is larger than the sum of its proper divisors (1133707).

9893813 is a wasteful number, since it uses less digits than its factorization.

9893813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30667.

The product of its digits is 46656, while the sum is 41.

The square root of 9893813 is about 3145.4432120132. The cubic root of 9893813 is about 214.6781772544.

The spelling of 9893813 in words is "nine million, eight hundred ninety-three thousand, eight hundred thirteen".