8316381 has 4 divisors (see below), whose sum is σ = 11088512. Its totient is φ = 5544252.

The previous prime is 8316377. The next prime is 8316419. The reversal of 8316381 is 1836138.

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.

It is not a de Polignac number, because 8316381 - 2² = 8316377 is a prime.

It is a super-2 number, since 2×8316381² = 138324385874322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8316181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386061 + ... + 1386066.

It is an arithmetic number, because the mean of its divisors is an integer number (2772128).

Almost surely, 2^8316381 is an apocalyptic number.

It is an amenable number.

8316381 is a deficient number, since it is larger than the sum of its proper divisors (2772131).

8316381 is a wasteful number, since it uses less digits than its factorization.

8316381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772130.

The product of its digits is 3456, while the sum is 30.

The square root of 8316381 is about 2883.8136208847. The cubic root of 8316381 is about 202.6024965041.

The spelling of 8316381 in words is "eight million, three hundred sixteen thousand, three hundred eighty-one".