64725634 has 16 divisors (see below), whose sum is σ = 103783680. Its totient is φ = 30199840.

The previous prime is 64725607. The next prime is 64725643. The reversal of 64725634 is 43652746.

64725634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64725593 and 64725602.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15274 + ... + 19045.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^64725634 is an apocalyptic number.

64725634 is a deficient number, since it is larger than the sum of its proper divisors (39058046).

64725634 is a wasteful number, since it uses less digits than its factorization.

64725634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34385.

The product of its digits is 120960, while the sum is 37.

The square root of 64725634 is about 8045.2242976812. The cubic root of 64725634 is about 401.5060598426.

The spelling of 64725634 in words is "sixty-four million, seven hundred twenty-five thousand, six hundred thirty-four".