9894813 has 8 divisors (see below), whose sum is σ = 13208448. Its totient is φ = 6588864.

The previous prime is 9894809. The next prime is 9894827. The reversal of 9894813 is 3184989.

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

It is not a de Polignac number, because 9894813 - 2² = 9894809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9894803) 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, 2620 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (1651056).

Almost surely, 2^9894813 is an apocalyptic number.

It is an amenable number.

9894813 is a deficient number, since it is larger than the sum of its proper divisors (3313635).

9894813 is a wasteful number, since it uses less digits than its factorization.

9894813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843.

The product of its digits is 62208, while the sum is 42.

The square root of 9894813 is about 3145.6021681071. The cubic root of 9894813 is about 214.6854097523.

The spelling of 9894813 in words is "nine million, eight hundred ninety-four thousand, eight hundred thirteen".