64344541 has 4 divisors (see below), whose sum is σ = 68129532. Its totient is φ = 60559552.

The previous prime is 64344529. The next prime is 64344587. The reversal of 64344541 is 14544346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14544346 = 2 ⋅7272173.

It can be written as a sum of positive squares in 2 ways, for example, as 49491225 + 14853316 = 7035^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 64344541 - 2¹⁷ = 64213469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64344521) 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 3 ways as a sum of consecutive naturals, for example, 1892470 + ... + 1892503.

It is an arithmetic number, because the mean of its divisors is an integer number (17032383).

Almost surely, 2^64344541 is an apocalyptic number.

It is an amenable number.

64344541 is a deficient number, since it is larger than the sum of its proper divisors (3784991).

64344541 is a wasteful number, since it uses less digits than its factorization.

64344541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784990.

The product of its digits is 23040, while the sum is 31.

The square root of 64344541 is about 8021.5049086814. The cubic root of 64344541 is about 400.7165095189.

Adding to 64344541 its reverse (14544346), we get a palindrome (78888887).

The spelling of 64344541 in words is "sixty-four million, three hundred forty-four thousand, five hundred forty-one".