6897243 has 16 divisors (see below), whose sum is σ = 9506816. Its totient is φ = 4445280.

The previous prime is 6897211. The next prime is 6897271. The reversal of 6897243 is 3427986.

6897243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6897243 - 2⁵ = 6897211 is a prime.

It is a super-2 number, since 2×6897243² = 95143922002098, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁵ + 8⁷ + 9² + 7² + 2¹³ + 4⁵ + 3¹⁴ .

It is a D-number.

It is a Duffinian number.

6897243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6897643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16173 + ... + 16593.

It is an arithmetic number, because the mean of its divisors is an integer number (594176).

Almost surely, 2^6897243 is an apocalyptic number.

6897243 is a deficient number, since it is larger than the sum of its proper divisors (2609573).

6897243 is a wasteful number, since it uses less digits than its factorization.

6897243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its digits is 72576, while the sum is 39.

The square root of 6897243 is about 2626.2602688995. The cubic root of 6897243 is about 190.3524666993.

It can be divided in two parts, 6897 and 243, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 6897243 in words is "six million, eight hundred ninety-seven thousand, two hundred forty-three".