4827978 has 32 divisors (see below), whose sum is σ = 11102400. Its totient is φ = 1553328.

The previous prime is 4827973. The next prime is 4827989. The reversal of 4827978 is 8797284.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4827973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25 + ... + 3107.

It is an arithmetic number, because the mean of its divisors is an integer number (346950).

Almost surely, 2^4827978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4827978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5551200).

4827978 is an abundant number, since it is smaller than the sum of its proper divisors (6274422).

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

4827978 is a wasteful number, since it uses less digits than its factorization.

4827978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123 (or 3117 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4827978 is about 2197.2660285000. The cubic root of 4827978 is about 169.0136422119.

The spelling of 4827978 in words is "four million, eight hundred twenty-seven thousand, nine hundred seventy-eight".