4989780 has 72 divisors (see below), whose sum is σ = 15943200. Its totient is φ = 1259712.

The previous prime is 4989779. The next prime is 4989797. The reversal of 4989780 is 879894.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2691 + ... + 4149.

Almost surely, 2^4989780 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 4989780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7971600).

4989780 is an abundant number, since it is smaller than the sum of its proper divisors (10953420).

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

4989780 is a wasteful number, since it uses less digits than its factorization.

4989780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4989780 is about 2233.7815470632. The cubic root of 4989780 is about 170.8810088366.

The spelling of 4989780 in words is "four million, nine hundred eighty-nine thousand, seven hundred eighty".