63893953 has 2 divisors, whose sum is σ = 63893954. Its totient is φ = 63893952.

The previous prime is 63893933. The next prime is 63893983. The reversal of 63893953 is 35939836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 23736384 = 6337^2 + 4872^2 .

It is a cyclic number.

It is not a de Polignac number, because 63893953 - 2²⁵ = 30339521 is a prime.

It is not a weakly prime, because it can be changed into another prime (63893933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31946976 + 31946977.

It is an arithmetic number, because the mean of its divisors is an integer number (31946977).

Almost surely, 2^63893953 is an apocalyptic number.

It is an amenable number.

63893953 is a deficient number, since it is larger than the sum of its proper divisors (1).

63893953 is an equidigital number, since it uses as much as digits as its factorization.

63893953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 63893953 is about 7993.3693146257. The cubic root of 63893953 is about 399.7789466110.

It can be divided in two parts, 63893 and 953, that added together give a palindrome (64846).

The spelling of 63893953 in words is "sixty-three million, eight hundred ninety-three thousand, nine hundred fifty-three".