63367621 has 2 divisors, whose sum is σ = 63367622. Its totient is φ = 63367620.

The previous prime is 63367607. The next prime is 63367631. The reversal of 63367621 is 12676336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 10150596 = 7295^2 + 3186^2 .

It is a cyclic number.

It is not a de Polignac number, because 63367621 - 2⁵ = 63367589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63367631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31683810 + 31683811.

It is an arithmetic number, because the mean of its divisors is an integer number (31683811).

Almost surely, 2^63367621 is an apocalyptic number.

It is an amenable number.

63367621 is a deficient number, since it is larger than the sum of its proper divisors (1).

63367621 is an equidigital number, since it uses as much as digits as its factorization.

63367621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 63367621 is about 7960.3781945332. The cubic root of 63367621 is about 398.6781805448.

The spelling of 63367621 in words is "sixty-three million, three hundred sixty-seven thousand, six hundred twenty-one".