6889225 has 12 divisors (see below), whose sum is σ = 9763264. Its totient is φ = 4723920.

The previous prime is 6889219. The next prime is 6889241. The reversal of 6889225 is 5229886.

It is not a de Polignac number, because 6889225 - 2³ = 6889217 is a prime.

It is a super-2 number, since 2×6889225² = 94922842201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19509 + ... + 19858.

Almost surely, 2^6889225 is an apocalyptic number.

It is an amenable number.

6889225 is a deficient number, since it is larger than the sum of its proper divisors (2874039).

6889225 is a wasteful number, since it uses less digits than its factorization.

6889225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39384 (or 39379 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 6889225 is about 2624.7333197870. The cubic root of 6889225 is about 190.2786769315.

It can be divided in two parts, 6889 and 225, that multiplied together give a square (1550025 = 1245²).

The spelling of 6889225 in words is "six million, eight hundred eighty-nine thousand, two hundred twenty-five".