7306693621 has 2 divisors, whose sum is σ = 7306693622. Its totient is φ = 7306693620.

The previous prime is 7306693591. The next prime is 7306693631. The reversal of 7306693621 is 1263966037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5463279396 + 1843414225 = 73914^2 + 42935^2 .

It is a cyclic number.

It is not a de Polignac number, because 7306693621 - 2¹¹ = 7306691573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7306693631) 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, 3653346810 + 3653346811.

It is an arithmetic number, because the mean of its divisors is an integer number (3653346811).

Almost surely, 2^7306693621 is an apocalyptic number.

It is an amenable number.

7306693621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7306693621 is an equidigital number, since it uses as much as digits as its factorization.

7306693621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 7306693621 is about 85479.1999319133. The cubic root of 7306693621 is about 1940.4701468855.

The spelling of 7306693621 in words is "seven billion, three hundred six million, six hundred ninety-three thousand, six hundred twenty-one".