4791720 has 64 divisors (see below), whose sum is σ = 14598720. Its totient is φ = 1257984.

The previous prime is 4791653. The next prime is 4791737. The reversal of 4791720 is 271974.

It is a Cunningham number, because it is equal to 2189²-1.

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 15 ways as a sum of consecutive naturals, for example, 8487 + ... + 9033.

It is an arithmetic number, because the mean of its divisors is an integer number (228105).

Almost surely, 2^4791720 is an apocalyptic number.

4791720 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 4791720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7299360).

4791720 is an abundant number, since it is smaller than the sum of its proper divisors (9807000).

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

4791720 is a wasteful number, since it uses less digits than its factorization.

4791720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 4791720 is about 2188.9997715852. Note that the first 3 decimals coincide. The cubic root of 4791720 is about 168.5894824783.

The spelling of 4791720 in words is "four million, seven hundred ninety-one thousand, seven hundred twenty".