4971780 has 168 divisors, whose sum is σ = 17627904. Its totient is φ = 1166400.

The previous prime is 4971773. The next prime is 4971781. The reversal of 4971780 is 871794.

4971780 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971781) 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 55 ways as a sum of consecutive naturals, for example, 160365 + ... + 160395.

It is an arithmetic number, because the mean of its divisors is an integer number (104928).

Almost surely, 2^4971780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4971780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8813952).

4971780 is an abundant number, since it is smaller than the sum of its proper divisors (12656124).

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

4971780 is a wasteful number, since it uses less digits than its factorization.

4971780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 4971780 is about 2229.7488647828. The cubic root of 4971780 is about 170.6752840565.

The spelling of 4971780 in words is "four million, nine hundred seventy-one thousand, seven hundred eighty".