64545726 has 32 divisors (see below), whose sum is σ = 151135488. Its totient is φ = 17991360.

The previous prime is 64545721. The next prime is 64545727. The reversal of 64545726 is 62754546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545721) 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 in 15 ways as a sum of consecutive naturals, for example, 17020 + ... + 20463.

It is an arithmetic number, because the mean of its divisors is an integer number (4722984).

Almost surely, 2^64545726 is an apocalyptic number.

64545726 is an abundant number, since it is smaller than the sum of its proper divisors (86589762).

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

64545726 is a wasteful number, since it uses less digits than its factorization.

64545726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37536.

The product of its digits is 201600, while the sum is 39.

The square root of 64545726 is about 8034.0354741562. The cubic root of 64545726 is about 401.1337128687.

The spelling of 64545726 in words is "sixty-four million, five hundred forty-five thousand, seven hundred twenty-six".