6887420822 has 4 divisors (see below), whose sum is σ = 10331131236. Its totient is φ = 3443710410.

The previous prime is 6887420807. The next prime is 6887420831. The reversal of 6887420822 is 2280247886.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721855204 + ... + 1721855207.

It is an arithmetic number, because the mean of its divisors is an integer number (2582782809).

Almost surely, 2^6887420822 is an apocalyptic number.

6887420822 is a deficient number, since it is larger than the sum of its proper divisors (3443710414).

6887420822 is a wasteful number, since it uses less digits than its factorization.

6887420822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443710413.

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 6887420822 is about 82990.4863342781. The cubic root of 6887420822 is about 1902.6206516580.

The spelling of 6887420822 in words is "six billion, eight hundred eighty-seven million, four hundred twenty thousand, eight hundred twenty-two".