4997820 has 48 divisors (see below), whose sum is σ = 14450688. Its totient is φ = 1289280.

The previous prime is 4997801. The next prime is 4997843. The reversal of 4997820 is 287994.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517 + ... + 3203.

It is an arithmetic number, because the mean of its divisors is an integer number (301056).

Almost surely, 2^4997820 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 4997820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7225344).

4997820 is an abundant number, since it is smaller than the sum of its proper divisors (9452868).

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

4997820 is a wasteful number, since it uses less digits than its factorization.

4997820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 4997820 is about 2235.5804615357. The cubic root of 4997820 is about 170.9727394046.

The spelling of 4997820 in words is "four million, nine hundred ninety-seven thousand, eight hundred twenty".