6719855 has 4 divisors (see below), whose sum is σ = 8063832. Its totient is φ = 5375880.

The previous prime is 6719849. The next prime is 6719861. The reversal of 6719855 is 5589176.

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

It is an interprime number because it is at equal distance from previous prime (6719849) and next prime (6719861).

It is not a de Polignac number, because 6719855 - 2²⁰ = 5671279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671981 + ... + 671990.

It is an arithmetic number, because the mean of its divisors is an integer number (2015958).

Almost surely, 2^6719855 is an apocalyptic number.

6719855 is a deficient number, since it is larger than the sum of its proper divisors (1343977).

6719855 is a wasteful number, since it uses less digits than its factorization.

6719855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343976.

The product of its digits is 75600, while the sum is 41.

The square root of 6719855 is about 2592.2683117301. The cubic root of 6719855 is about 188.7064019298.

The spelling of 6719855 in words is "six million, seven hundred nineteen thousand, eight hundred fifty-five".