8607381 has 4 divisors (see below), whose sum is σ = 11476512. Its totient is φ = 5738252.

The previous prime is 8607377. The next prime is 8607383. The reversal of 8607381 is 1837068.

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 8607381 - 2² = 8607377 is a prime.

It is a super-3 number, since 3×8607381³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8607383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434561 + ... + 1434566.

It is an arithmetic number, because the mean of its divisors is an integer number (2869128).

Almost surely, 2^8607381 is an apocalyptic number.

It is an amenable number.

8607381 is a deficient number, since it is larger than the sum of its proper divisors (2869131).

8607381 is a wasteful number, since it uses less digits than its factorization.

8607381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869130.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 8607381 is about 2933.8338398757. The cubic root of 8607381 is about 204.9385578308.

The spelling of 8607381 in words is "eight million, six hundred seven thousand, three hundred eighty-one".