6897864 has 32 divisors (see below), whose sum is σ = 17428320. Its totient is φ = 2274816.

The previous prime is 6897857. The next prime is 6897883. The reversal of 6897864 is 4687986.

It is a d-powerful number, because it can be written as 6 + 8 + 9⁷ + 7² + 8⁷ + 6⁴ + 4⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847 + ... + 3809.

It is an arithmetic number, because the mean of its divisors is an integer number (544635).

Almost surely, 2^6897864 is an apocalyptic number.

It is an amenable number.

6897864 is an abundant number, since it is smaller than the sum of its proper divisors (10530456).

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

6897864 is a wasteful number, since it uses less digits than its factorization.

6897864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3065 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 6897864 is about 2626.3784951907. The cubic root of 6897864 is about 190.3581793845.

The spelling of 6897864 in words is "six million, eight hundred ninety-seven thousand, eight hundred sixty-four".