3847985423 has 4 divisors (see below), whose sum is σ = 3941838768. Its totient is φ = 3754132080.

The previous prime is 3847985381. The next prime is 3847985429. The reversal of 3847985423 is 3245897483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3847985423 - 2¹⁴ = 3847969039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847985429) 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, 46926611 + ... + 46926692.

It is an arithmetic number, because the mean of its divisors is an integer number (985459692).

Almost surely, 2^3847985423 is an apocalyptic number.

3847985423 is a deficient number, since it is larger than the sum of its proper divisors (93853345).

3847985423 is an equidigital number, since it uses as much as digits as its factorization.

3847985423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93853344.

The product of its digits is 5806080, while the sum is 53.

The square root of 3847985423 is about 62032.1321816363. The cubic root of 3847985423 is about 1567.0317866421.

The spelling of 3847985423 in words is "three billion, eight hundred forty-seven million, nine hundred eighty-five thousand, four hundred twenty-three".