3898375855 has 12 divisors (see below), whose sum is σ = 5103934632. Its totient is φ = 2834845680.

The previous prime is 3898375807. The next prime is 3898375867. The reversal of 3898375855 is 5585738983.

It is not a de Polignac number, because 3898375855 - 2²¹ = 3896278703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3898375793 and 3898375802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458836 + ... + 467254.

It is an arithmetic number, because the mean of its divisors is an integer number (425327886).

Almost surely, 2^3898375855 is an apocalyptic number.

3898375855 is a deficient number, since it is larger than the sum of its proper divisors (1205558777).

3898375855 is an frugal number, since it uses more digits than its factorization.

3898375855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16854 (or 8435 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 61.

The square root of 3898375855 is about 62436.9750628584. The cubic root of 3898375855 is about 1573.8423817483.

The spelling of 3898375855 in words is "three billion, eight hundred ninety-eight million, three hundred seventy-five thousand, eight hundred fifty-five".