63364993 has 2 divisors, whose sum is σ = 63364994. Its totient is φ = 63364992.

The previous prime is 63364991. The next prime is 63365009. The reversal of 63364993 is 39946336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58798224 + 4566769 = 7668^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 63364993 - 2¹ = 63364991 is a prime.

Together with 63364991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63364991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31682496 + 31682497.

It is an arithmetic number, because the mean of its divisors is an integer number (31682497).

Almost surely, 2^63364993 is an apocalyptic number.

It is an amenable number.

63364993 is a deficient number, since it is larger than the sum of its proper divisors (1).

63364993 is an equidigital number, since it uses as much as digits as its factorization.

63364993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 43.

The square root of 63364993 is about 7960.2131252875. The cubic root of 63364993 is about 398.6726691036.

The spelling of 63364993 in words is "sixty-three million, three hundred sixty-four thousand, nine hundred ninety-three".