7720232 has 32 divisors (see below), whose sum is σ = 16413600. Its totient is φ = 3374784.

The previous prime is 7720211. The next prime is 7720241. The reversal of 7720232 is 2320277.

It is a junction number, because it is equal to n+sod(n) for n = 7720198 and 7720207.

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, 23 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (512925).

Almost surely, 2^7720232 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 7720232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8206800).

7720232 is an abundant number, since it is smaller than the sum of its proper divisors (8693368).

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

7720232 is a wasteful number, since it uses less digits than its factorization.

7720232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 7720232 is about 2778.5305468898. The cubic root of 7720232 is about 197.6408822294.

The spelling of 7720232 in words is "seven million, seven hundred twenty thousand, two hundred thirty-two".