63239745 has 16 divisors (see below), whose sum is σ = 107136000. Its totient is φ = 31743744.

The previous prime is 63239741. The next prime is 63239773. The reversal of 63239745 is 54793236.

63239745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63239745 - 2² = 63239741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63239741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123745 + ... + 124254.

It is an arithmetic number, because the mean of its divisors is an integer number (6696000).

Almost surely, 2^63239745 is an apocalyptic number.

It is an amenable number.

63239745 is a deficient number, since it is larger than the sum of its proper divisors (43896255).

63239745 is a wasteful number, since it uses less digits than its factorization.

63239745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248024.

The product of its digits is 136080, while the sum is 39.

The square root of 63239745 is about 7952.3421078321. The cubic root of 63239745 is about 398.4098221297.

The spelling of 63239745 in words is "sixty-three million, two hundred thirty-nine thousand, seven hundred forty-five".