7406323621 has 2 divisors, whose sum is σ = 7406323622. Its totient is φ = 7406323620.

The previous prime is 7406323597. The next prime is 7406323627. The reversal of 7406323621 is 1263236047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6536722500 + 869601121 = 80850^2 + 29489^2 .

It is a cyclic number.

It is not a de Polignac number, because 7406323621 - 2²⁵ = 7372769189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7406323627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3703161810 + 3703161811.

It is an arithmetic number, because the mean of its divisors is an integer number (3703161811).

Almost surely, 2^7406323621 is an apocalyptic number.

It is an amenable number.

7406323621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7406323621 is an equidigital number, since it uses as much as digits as its factorization.

7406323621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 7406323621 is about 86060.0001220079. Note that the first 3 decimals coincide. The cubic root of 7406323621 is about 1949.2500838512.

Adding to 7406323621 its reverse (1263236047), we get a palindrome (8669559668).

The spelling of 7406323621 in words is "seven billion, four hundred six million, three hundred twenty-three thousand, six hundred twenty-one".