63913 has 2 divisors, whose sum is σ = 63914. Its totient is φ = 63912.

The previous prime is 63907. The next prime is 63929. The reversal of 63913 is 31936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56169 + 7744 = 237^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 63913 - 2¹³ = 55721 is a prime.

It is not a weakly prime, because it can be changed into another prime (63113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31956 + 31957.

It is an arithmetic number, because the mean of its divisors is an integer number (31957).

2⁶³⁹¹³ is an apocalyptic number.

It is an amenable number.

63913 is a deficient number, since it is larger than the sum of its proper divisors (1).

63913 is an equidigital number, since it uses as much as digits as its factorization.

63913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 22.

The square root of 63913 is about 252.8102054902. The cubic root of 63913 is about 39.9818667809.

The spelling of 63913 in words is "sixty-three thousand, nine hundred thirteen".