6986255 has 4 divisors (see below), whose sum is σ = 8383512. Its totient is φ = 5589000.

The previous prime is 6986219. The next prime is 6986257. The reversal of 6986255 is 5526896.

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

It is not a de Polignac number, because 6986255 - 2¹⁸ = 6724111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986257) 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, 698621 + ... + 698630.

It is an arithmetic number, because the mean of its divisors is an integer number (2095878).

Almost surely, 2^6986255 is an apocalyptic number.

6986255 is a deficient number, since it is larger than the sum of its proper divisors (1397257).

6986255 is a wasteful number, since it uses less digits than its factorization.

6986255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397256.

The product of its digits is 129600, while the sum is 41.

The square root of 6986255 is about 2643.1524738463. The cubic root of 6986255 is about 191.1678303370.

It can be divided in two parts, 69 and 86255, that multiplied together give a palindrome (5951595).

The spelling of 6986255 in words is "six million, nine hundred eighty-six thousand, two hundred fifty-five".