3427872845 has 8 divisors (see below), whose sum is σ = 4139648664. Its totient is φ = 2724830784.

The previous prime is 3427872841. The next prime is 3427872863. The reversal of 3427872845 is 5482787243.

It can be written as a sum of positive squares in 4 ways, for example, as 65496649 + 3362376196 = 8093^2 + 57986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3427872845 - 2² = 3427872841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3427872793 and 3427872802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427872841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2182574 + ... + 2184143.

It is an arithmetic number, because the mean of its divisors is an integer number (517456083).

Almost surely, 2^3427872845 is an apocalyptic number.

It is an amenable number.

3427872845 is a deficient number, since it is larger than the sum of its proper divisors (711775819).

3427872845 is a wasteful number, since it uses less digits than its factorization.

3427872845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366879.

The product of its digits is 3010560, while the sum is 50.

The square root of 3427872845 is about 58548.0387801334. The cubic root of 3427872845 is about 1507.7924623276.

The spelling of 3427872845 in words is "three billion, four hundred twenty-seven million, eight hundred seventy-two thousand, eight hundred forty-five".