6859381 has 8 divisors (see below), whose sum is σ = 7366464. Its totient is φ = 6363840.

The previous prime is 6859379. The next prime is 6859387. The reversal of 6859381 is 1839586.

It is a happy number.

6859381 is nontrivially palindromic in base 3.

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 6859381 - 2¹ = 6859379 is a prime.

It is a super-2 number, since 2×6859381² = 94102215406322, 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 (6859387) 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, 1635 + ... + 4048.

It is an arithmetic number, because the mean of its divisors is an integer number (920808).

Almost surely, 2^6859381 is an apocalyptic number.

It is an amenable number.

6859381 is a deficient number, since it is larger than the sum of its proper divisors (507083).

6859381 is a wasteful number, since it uses less digits than its factorization.

6859381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its digits is 51840, while the sum is 40.

The square root of 6859381 is about 2619.0420004269. The cubic root of 6859381 is about 190.0035179404.

The spelling of 6859381 in words is "six million, eight hundred fifty-nine thousand, three hundred eighty-one".