8579381 has 4 divisors (see below), whose sum is σ = 8587500. Its totient is φ = 8571264.

The previous prime is 8579357. The next prime is 8579399. The reversal of 8579381 is 1839758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1343281 + 7236100 = 1159^2 + 2690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8579381 is a prime.

It is a super-2 number, since 2×8579381² = 147211556686322, 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 (8579341) 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, 2186 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (2146875).

Almost surely, 2^8579381 is an apocalyptic number.

It is an amenable number.

8579381 is a deficient number, since it is larger than the sum of its proper divisors (8119).

8579381 is a wasteful number, since it uses less digits than its factorization.

8579381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118.

The product of its digits is 60480, while the sum is 41.

The square root of 8579381 is about 2929.0580397117. The cubic root of 8579381 is about 204.7160932144.

The spelling of 8579381 in words is "eight million, five hundred seventy-nine thousand, three hundred eighty-one".