3849978 has 24 divisors (see below), whose sum is σ = 8465184. Its totient is φ = 1166440.

The previous prime is 3849977. The next prime is 3849997. The reversal of 3849978 is 8799483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3849977) 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, 1926 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (352716).

Almost surely, 2^3849978 is an apocalyptic number.

3849978 is an abundant number, since it is smaller than the sum of its proper divisors (4615206).

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

3849978 is a wasteful number, since it uses less digits than its factorization.

3849978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330 (or 5319 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 3849978 is about 1962.1360809077. The cubic root of 3849978 is about 156.7302221892.

The spelling of 3849978 in words is "three million, eight hundred forty-nine thousand, nine hundred seventy-eight".