7363660621 has 2 divisors, whose sum is σ = 7363660622. Its totient is φ = 7363660620.

The previous prime is 7363660531. The next prime is 7363660637. The reversal of 7363660621 is 1260663637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6220476900 + 1143183721 = 78870^2 + 33811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7363660621 is a prime.

It is a super-2 number, since 2×7363660621² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7363660321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3681830310 + 3681830311.

It is an arithmetic number, because the mean of its divisors is an integer number (3681830311).

Almost surely, 2^7363660621 is an apocalyptic number.

It is an amenable number.

7363660621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7363660621 is an equidigital number, since it uses as much as digits as its factorization.

7363660621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 7363660621 is about 85811.7743727514. The cubic root of 7363660621 is about 1945.5000880346.

The spelling of 7363660621 in words is "seven billion, three hundred sixty-three million, six hundred sixty thousand, six hundred twenty-one".