4727820 has 24 divisors (see below), whose sum is σ = 13238064. Its totient is φ = 1260736.

The previous prime is 4727813. The next prime is 4727837. The reversal of 4727820 is 287274.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39339 + ... + 39458.

It is an arithmetic number, because the mean of its divisors is an integer number (551586).

Almost surely, 2^4727820 is an apocalyptic number.

It is an amenable number.

4727820 is an abundant number, since it is smaller than the sum of its proper divisors (8510244).

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

4727820 is a wasteful number, since it uses less digits than its factorization.

4727820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78809 (or 78807 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 4727820 is about 2174.3550767986. The cubic root of 4727820 is about 167.8367177717.

The spelling of 4727820 in words is "four million, seven hundred twenty-seven thousand, eight hundred twenty".