6893861 has 4 divisors (see below), whose sum is σ = 7424172. Its totient is φ = 6363552.

The previous prime is 6893839. The next prime is 6893867. The reversal of 6893861 is 1683986.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1943236 + 4950625 = 1394^2 + 2225^2 .

It is not a de Polignac number, because 6893861 - 2¹⁴ = 6877477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6893867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265136 + ... + 265161.

It is an arithmetic number, because the mean of its divisors is an integer number (1856043).

Almost surely, 2^6893861 is an apocalyptic number.

It is an amenable number.

6893861 is a deficient number, since it is larger than the sum of its proper divisors (530311).

6893861 is a wasteful number, since it uses less digits than its factorization.

6893861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530310.

The product of its digits is 62208, while the sum is 41.

The square root of 6893861 is about 2625.6163086026. The cubic root of 6893861 is about 190.3213490825.

The spelling of 6893861 in words is "six million, eight hundred ninety-three thousand, eight hundred sixty-one".