7799621 has 2 divisors, whose sum is σ = 7799622. Its totient is φ = 7799620.

The previous prime is 7799611. The next prime is 7799653. The reversal of 7799621 is 1269977.

It is a happy number.

7799621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 3330625 = 2114^2 + 1825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7799621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7799611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899810 + 3899811.

It is an arithmetic number, because the mean of its divisors is an integer number (3899811).

Almost surely, 2^7799621 is an apocalyptic number.

It is an amenable number.

7799621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7799621 is an equidigital number, since it uses as much as digits as its factorization.

7799621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 41.

The square root of 7799621 is about 2792.7801560452. The cubic root of 7799621 is about 198.3160361222.

The spelling of 7799621 in words is "seven million, seven hundred ninety-nine thousand, six hundred twenty-one".