6879345487 has 4 divisors (see below), whose sum is σ = 7862109136. Its totient is φ = 5896581840.

The previous prime is 6879345479. The next prime is 6879345503. The reversal of 6879345487 is 7845439786.

It is a happy number.

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 6879345487 - 2³ = 6879345479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879345427) 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, 491381814 + ... + 491381827.

It is an arithmetic number, because the mean of its divisors is an integer number (1965527284).

Almost surely, 2^6879345487 is an apocalyptic number.

6879345487 is a deficient number, since it is larger than the sum of its proper divisors (982763649).

6879345487 is an equidigital number, since it uses as much as digits as its factorization.

6879345487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982763648.

The product of its digits is 40642560, while the sum is 61.

The square root of 6879345487 is about 82941.8198920183. The cubic root of 6879345487 is about 1901.8767685601.

The spelling of 6879345487 in words is "six billion, eight hundred seventy-nine million, three hundred forty-five thousand, four hundred eighty-seven".