6897436 has 36 divisors (see below), whose sum is σ = 15126888. Its totient is φ = 2727648.

The previous prime is 6897431. The next prime is 6897463. The reversal of 6897436 is 6347986.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6897392 and 6897401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897431) 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 11 ways as a sum of consecutive naturals, for example, 1195 + ... + 3901.

Almost surely, 2^6897436 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 6897436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7563444).

6897436 is an abundant number, since it is smaller than the sum of its proper divisors (8229452).

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

6897436 is a wasteful number, since it uses less digits than its factorization.

6897436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2729 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 6897436 is about 2626.2970129062. The cubic root of 6897436 is about 190.3542421760.

The spelling of 6897436 in words is "six million, eight hundred ninety-seven thousand, four hundred thirty-six".