4978000 has 80 divisors (see below), whose sum is σ = 12767040. Its totient is φ = 1872000.

The previous prime is 4977979. The next prime is 4978003. The reversal of 4978000 is 8794.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 4978000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37935 + ... + 38065.

It is an arithmetic number, because the mean of its divisors is an integer number (159588).

Almost surely, 2^4978000 is an apocalyptic number.

4978000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4978000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6383520).

4978000 is an abundant number, since it is smaller than the sum of its proper divisors (7789040).

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

4978000 is a wasteful number, since it uses less digits than its factorization.

4978000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 4978000 is about 2231.1432047271. The cubic root of 4978000 is about 170.7464294589.

The spelling of 4978000 in words is "four million, nine hundred seventy-eight thousand".