7720488 has 64 divisors (see below), whose sum is σ = 22156800. Its totient is φ = 2488320.

The previous prime is 7720487. The next prime is 7720507. The reversal of 7720488 is 8840277.

7720488 is digitally balanced in base 4, 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 not an unprimeable number, because it can be changed into a prime (7720481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6120 + ... + 7272.

It is an arithmetic number, because the mean of its divisors is an integer number (346200).

Almost surely, 2^7720488 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 7720488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11078400).

7720488 is an abundant number, since it is smaller than the sum of its proper divisors (14436312).

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

7720488 is a wasteful number, since it uses less digits than its factorization.

7720488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7720488 is about 2778.5766140238. The cubic root of 7720488 is about 197.6430667711.

The spelling of 7720488 in words is "seven million, seven hundred twenty thousand, four hundred eighty-eight".