3847842 has 24 divisors (see below), whose sum is σ = 8776560. Its totient is φ = 1215000.

The previous prime is 3847829. The next prime is 3847849. The reversal of 3847842 is 2487483.

It is a junction number, because it is equal to n+sod(n) for n = 3847797 and 3847806.

It is not an unprimeable number, because it can be changed into a prime (3847849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5284 + ... + 5967.

It is an arithmetic number, because the mean of its divisors is an integer number (365690).

Almost surely, 2^3847842 is an apocalyptic number.

3847842 is an abundant number, since it is smaller than the sum of its proper divisors (4928718).

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

3847842 is a wasteful number, since it uses less digits than its factorization.

3847842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278 (or 11275 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 3847842 is about 1961.5917006350. The cubic root of 3847842 is about 156.7012317477.

The spelling of 3847842 in words is "three million, eight hundred forty-seven thousand, eight hundred forty-two".