6897959827 has 4 divisors (see below), whose sum is σ = 7525047096. Its totient is φ = 6270872560.

The previous prime is 6897959821. The next prime is 6897959879. The reversal of 6897959827 is 7289597986.

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

It is a cyclic number.

It is not a de Polignac number, because 6897959827 - 2³ = 6897959819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6897959821) 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, 313543618 + ... + 313543639.

It is an arithmetic number, because the mean of its divisors is an integer number (1881261774).

Almost surely, 2^6897959827 is an apocalyptic number.

6897959827 is a deficient number, since it is larger than the sum of its proper divisors (627087269).

6897959827 is a wasteful number, since it uses less digits than its factorization.

6897959827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627087268.

The product of its digits is 137168640, while the sum is 70.

The square root of 6897959827 is about 83053.9573229356. The cubic root of 6897959827 is about 1903.5906088291.

The spelling of 6897959827 in words is "six billion, eight hundred ninety-seven million, nine hundred fifty-nine thousand, eight hundred twenty-seven".