3847884681 has 8 divisors (see below), whose sum is σ = 5139998464. Its totient is φ = 2560513680.

The previous prime is 3847884653. The next prime is 3847884707. The reversal of 3847884681 is 1864887483.

It is a happy number.

3847884681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3847884681 - 2⁷ = 3847884553 is a prime.

It is a super-2 number, since 2×3847884681² = 29612433036548943522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3847884181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183801 + ... + 1187046.

It is an arithmetic number, because the mean of its divisors is an integer number (642499808).

Almost surely, 2^3847884681 is an apocalyptic number.

It is an amenable number.

3847884681 is a deficient number, since it is larger than the sum of its proper divisors (1292113783).

3847884681 is a wasteful number, since it uses less digits than its factorization.

3847884681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371391.

The product of its digits is 8257536, while the sum is 57.

The square root of 3847884681 is about 62031.3201616732. The cubic root of 3847884681 is about 1567.0181113223.

The spelling of 3847884681 in words is "three billion, eight hundred forty-seven million, eight hundred eighty-four thousand, six hundred eighty-one".