63728593 has 2 divisors, whose sum is σ = 63728594. Its totient is φ = 63728592.

The previous prime is 63728579. The next prime is 63728617. The reversal of 63728593 is 39582736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54656449 + 9072144 = 7393^2 + 3012^2 .

It is a cyclic number.

It is not a de Polignac number, because 63728593 - 2⁹ = 63728081 is a prime.

It is a super-2 number, since 2×63728593² = 8122667131519298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63728503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31864296 + 31864297.

It is an arithmetic number, because the mean of its divisors is an integer number (31864297).

Almost surely, 2^63728593 is an apocalyptic number.

It is an amenable number.

63728593 is a deficient number, since it is larger than the sum of its proper divisors (1).

63728593 is an equidigital number, since it uses as much as digits as its factorization.

63728593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 63728593 is about 7983.0190404383. The cubic root of 63728593 is about 399.4337675803.

The spelling of 63728593 in words is "sixty-three million, seven hundred twenty-eight thousand, five hundred ninety-three".