6889531 has 8 divisors (see below), whose sum is σ = 7560000. Its totient is φ = 6226440.

The previous prime is 6889529. The next prime is 6889537. The reversal of 6889531 is 1359886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6889531 - 2¹ = 6889529 is a prime.

It is a super-2 number, since 2×6889531² = 94931274799922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6889537) 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, 220 + ... + 3718.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 2^6889531 is an apocalyptic number.

6889531 is a deficient number, since it is larger than the sum of its proper divisors (670469).

6889531 is a wasteful number, since it uses less digits than its factorization.

6889531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689.

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

The square root of 6889531 is about 2624.7916107760. The cubic root of 6889531 is about 190.2814941044.

The spelling of 6889531 in words is "six million, eight hundred eighty-nine thousand, five hundred thirty-one".