3847314521 has 4 divisors (see below), whose sum is σ = 3893667792. Its totient is φ = 3800961252.

The previous prime is 3847314509. The next prime is 3847314529. The reversal of 3847314521 is 1254137483.

3847314521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1254137483 = 6763 ⋅185441.

It is a cyclic number.

It is not a de Polignac number, because 3847314521 - 2²² = 3843120217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3847314529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23176511 + ... + 23176676.

It is an arithmetic number, because the mean of its divisors is an integer number (973416948).

Almost surely, 2^3847314521 is an apocalyptic number.

It is an amenable number.

3847314521 is a deficient number, since it is larger than the sum of its proper divisors (46353271).

3847314521 is an equidigital number, since it uses as much as digits as its factorization.

3847314521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46353270.

The product of its digits is 80640, while the sum is 38.

The square root of 3847314521 is about 62026.7242485044. The cubic root of 3847314521 is about 1566.9407099054.

The spelling of 3847314521 in words is "three billion, eight hundred forty-seven million, three hundred fourteen thousand, five hundred twenty-one".