6897223 has 4 divisors (see below), whose sum is σ = 7302960. Its totient is φ = 6491488.

The previous prime is 6897211. The next prime is 6897271. The reversal of 6897223 is 3227986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6897223 - 2¹³ = 6889031 is a prime.

It is a super-2 number, since 2×6897223² = 95143370223458, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6² + 8 + 9⁷ + 7⁵ + 2³ + 2²¹ + 3⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202843 + ... + 202876.

It is an arithmetic number, because the mean of its divisors is an integer number (1825740).

Almost surely, 2^6897223 is an apocalyptic number.

6897223 is a deficient number, since it is larger than the sum of its proper divisors (405737).

6897223 is a wasteful number, since it uses less digits than its factorization.

6897223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405736.

The product of its digits is 36288, while the sum is 37.

The square root of 6897223 is about 2626.2564612010. The cubic root of 6897223 is about 190.3522827101.

It can be divided in two parts, 689722 and 3, that added together give a triangular number (689725 = T₁₁₇₄).

The spelling of 6897223 in words is "six million, eight hundred ninety-seven thousand, two hundred twenty-three".