63433957 has 2 divisors, whose sum is σ = 63433958. Its totient is φ = 63433956.

The previous prime is 63433939. The next prime is 63433969. The reversal of 63433957 is 75933436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61873956 + 1560001 = 7866^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 63433957 - 2¹¹ = 63431909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63433907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31716978 + 31716979.

It is an arithmetic number, because the mean of its divisors is an integer number (31716979).

Almost surely, 2^63433957 is an apocalyptic number.

It is an amenable number.

63433957 is a deficient number, since it is larger than the sum of its proper divisors (1).

63433957 is an equidigital number, since it uses as much as digits as its factorization.

63433957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 40.

The square root of 63433957 is about 7964.5437408555. The cubic root of 63433957 is about 398.8172499528.

The spelling of 63433957 in words is "sixty-three million, four hundred thirty-three thousand, nine hundred fifty-seven".