6889472 has 42 divisors (see below), whose sum is σ = 14269593. Its totient is φ = 3325952.

The previous prime is 6889453. The next prime is 6889481. The reversal of 6889472 is 2749886.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 6885376 + 4096 = 2624^2 + 64^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1856.

It is a d-powerful number, because it can be written as 6⁵ + 8³ + 8⁷ + 9⁷ + 4⁵ + 7 + 2⁵ .

It is a Duffinian number.

Its product of digits (193536) is a multiple of the sum of its prime factors (84).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 237554 + ... + 237582.

Almost surely, 2^6889472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6889472

6889472 is an abundant number, since it is smaller than the sum of its proper divisors (7380121).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6889472 is an frugal number, since it uses more digits than its factorization.

6889472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 31 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 6889472 is about 2624.7803717645. The cubic root of 6889472 is about 190.2809509305.

The spelling of 6889472 in words is "six million, eight hundred eighty-nine thousand, four hundred seventy-two".