8305381 has 8 divisors (see below), whose sum is σ = 9515520. Its totient is φ = 7101168.

The previous prime is 8305361. The next prime is 8305403. The reversal of 8305381 is 1835038.

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 8305381 - 2¹¹ = 8303333 is a prime.

It is a super-2 number, since 2×8305381² = 137958707110322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8305361) 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, 2115 + ... + 4591.

It is an arithmetic number, because the mean of its divisors is an integer number (1189440).

Almost surely, 2^8305381 is an apocalyptic number.

It is an amenable number.

8305381 is a deficient number, since it is larger than the sum of its proper divisors (1210139).

8305381 is a wasteful number, since it uses less digits than its factorization.

8305381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8305381 is about 2881.9057930474. The cubic root of 8305381 is about 202.5131302770.

The spelling of 8305381 in words is "eight million, three hundred five thousand, three hundred eighty-one".