64534626 has 48 divisors (see below), whose sum is σ = 152530560. Its totient is φ = 19599840.

The previous prime is 64534607. The next prime is 64534627. The reversal of 64534626 is 62643546.

64534626 is a `hidden beast` number, since 64 + 534 + 62 + 6 = 666.

64534626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64534627) 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 23 ways as a sum of consecutive naturals, for example, 16741 + ... + 20231.

It is an arithmetic number, because the mean of its divisors is an integer number (3177720).

Almost surely, 2^64534626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64534626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76265280).

64534626 is an abundant number, since it is smaller than the sum of its proper divisors (87995934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64534626 is a wasteful number, since it uses less digits than its factorization.

64534626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3588 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 64534626 is about 8033.3446334637. The cubic root of 64534626 is about 401.1107170808.

The spelling of 64534626 in words is "sixty-four million, five hundred thirty-four thousand, six hundred twenty-six".