3905679855 has 64 divisors (see below), whose sum is σ = 8001727488. Its totient is φ = 1579253760.

The previous prime is 3905679853. The next prime is 3905679859. The reversal of 3905679855 is 5589765093.

It is not a de Polignac number, because 3905679855 - 2¹ = 3905679853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3905679795 and 3905679804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905679851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2962 + ... + 88431.

It is an arithmetic number, because the mean of its divisors is an integer number (125026992).

Almost surely, 2^3905679855 is an apocalyptic number.

3905679855 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3905679855 is an abundant number, since it is smaller than the sum of its proper divisors (4096047633).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3905679855 is a wasteful number, since it uses less digits than its factorization.

3905679855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91456.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The square root of 3905679855 is about 62495.4386735544. The cubic root of 3905679855 is about 1574.8246859538.

The spelling of 3905679855 in words is "three billion, nine hundred five million, six hundred seventy-nine thousand, eight hundred fifty-five".