9381613 has 4 divisors (see below), whose sum is σ = 9412480. Its totient is φ = 9350748.

The previous prime is 9381607. The next prime is 9381643. The reversal of 9381613 is 3161839.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3161839 = 1699 ⋅1861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9381613 is a prime.

It is a Duffinian number.

9381613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9381643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14973 + ... + 15586.

It is an arithmetic number, because the mean of its divisors is an integer number (2353120).

Almost surely, 2^9381613 is an apocalyptic number.

It is an amenable number.

9381613 is a deficient number, since it is larger than the sum of its proper divisors (30867).

9381613 is a wasteful number, since it uses less digits than its factorization.

9381613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30866.

The product of its digits is 3888, while the sum is 31.

The square root of 9381613 is about 3062.9418864876. The cubic root of 9381613 is about 210.9077335189.

The spelling of 9381613 in words is "nine million, three hundred eighty-one thousand, six hundred thirteen".