63533923 has 2 divisors, whose sum is σ = 63533924. Its totient is φ = 63533922.

The previous prime is 63533917. The next prime is 63533941. The reversal of 63533923 is 32933536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63533923 - 2⁹ = 63533411 is a prime.

It is not a weakly prime, because it can be changed into another prime (63533963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31766961 + 31766962.

It is an arithmetic number, because the mean of its divisors is an integer number (31766962).

Almost surely, 2^63533923 is an apocalyptic number.

63533923 is a deficient number, since it is larger than the sum of its proper divisors (1).

63533923 is an equidigital number, since it uses as much as digits as its factorization.

63533923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 34.

The square root of 63533923 is about 7970.8169593838. The cubic root of 63533923 is about 399.0266395950.

The spelling of 63533923 in words is "sixty-three million, five hundred thirty-three thousand, nine hundred twenty-three".