63998234 has 16 divisors (see below), whose sum is σ = 104393448. Its totient is φ = 29302272.

The previous prime is 63998227. The next prime is 63998239. The reversal of 63998234 is 43289936.

It can be written as a sum of positive squares in 4 ways, for example, as 63952009 + 46225 = 7997^2 + 215^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63998239) 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 in 7 ways as a sum of consecutive naturals, for example, 24179 + ... + 26694.

Almost surely, 2^63998234 is an apocalyptic number.

63998234 is a deficient number, since it is larger than the sum of its proper divisors (40395214).

63998234 is a wasteful number, since it uses less digits than its factorization.

63998234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50929.

The product of its digits is 279936, while the sum is 44.

The square root of 63998234 is about 7999.8896242386. The cubic root of 63998234 is about 399.9963207995.

The spelling of 63998234 in words is "sixty-three million, nine hundred ninety-eight thousand, two hundred thirty-four".