64613841 has 8 divisors (see below), whose sum is σ = 87005184. Its totient is φ = 42649200.

The previous prime is 64613819. The next prime is 64613867. The reversal of 64613841 is 14831646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64613841 - 2⁷ = 64613713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64613881) 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 7 ways as a sum of consecutive naturals, for example, 106321 + ... + 106926.

It is an arithmetic number, because the mean of its divisors is an integer number (10875648).

Almost surely, 2^64613841 is an apocalyptic number.

It is an amenable number.

64613841 is a deficient number, since it is larger than the sum of its proper divisors (22391343).

64613841 is a wasteful number, since it uses less digits than its factorization.

64613841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213351.

The product of its digits is 13824, while the sum is 33.

The square root of 64613841 is about 8038.2735086584. The cubic root of 64613841 is about 401.2747685140.

The spelling of 64613841 in words is "sixty-four million, six hundred thirteen thousand, eight hundred forty-one".