63901 has 2 divisors, whose sum is σ = 63902. Its totient is φ = 63900.
The previous prime is 63863. The next prime is 63907. The reversal of 63901 is 10936.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 63001 + 900 = 251^2 + 30^2 .
It is a cyclic number.
It is not a de Polignac number, because 63901 - 27 = 63773 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (63907) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31950 + 31951.
It is an arithmetic number, because the mean of its divisors is an integer number (31951).
263901 is an apocalyptic number.
It is an amenable number.
63901 is a deficient number, since it is larger than the sum of its proper divisors (1).
63901 is an equidigital number, since it uses as much as digits as its factorization.
63901 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 162, while the sum is 19.
The square root of 63901 is about 252.7864711570. The cubic root of 63901 is about 39.9793643561.
The spelling of 63901 in words is "sixty-three thousand, nine hundred one".
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