8347381 has 4 divisors (see below), whose sum is σ = 9539872. Its totient is φ = 7154892.

The previous prime is 8347373. The next prime is 8347433. The reversal of 8347381 is 1837438.

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 a cyclic number.

It is not a de Polignac number, because 8347381 - 2³ = 8347373 is a prime.

It is a super-2 number, since 2×8347381² = 139357539118322, 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 (8347351) 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, 596235 + ... + 596248.

It is an arithmetic number, because the mean of its divisors is an integer number (2384968).

Almost surely, 2^8347381 is an apocalyptic number.

It is an amenable number.

8347381 is a deficient number, since it is larger than the sum of its proper divisors (1192491).

8347381 is a wasteful number, since it uses less digits than its factorization.

8347381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192490.

The product of its digits is 16128, while the sum is 34.

The square root of 8347381 is about 2889.1834486581. The cubic root of 8347381 is about 202.8539235610.

The spelling of 8347381 in words is "eight million, three hundred forty-seven thousand, three hundred eighty-one".