64242017 has 4 divisors (see below), whose sum is σ = 73419456. Its totient is φ = 55064580.

The previous prime is 64242011. The next prime is 64242019. The reversal of 64242017 is 71024246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64242017 - 2⁴ = 64242001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64242011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4588709 + ... + 4588722.

It is an arithmetic number, because the mean of its divisors is an integer number (18354864).

Almost surely, 2^64242017 is an apocalyptic number.

It is an amenable number.

64242017 is a deficient number, since it is larger than the sum of its proper divisors (9177439).

64242017 is an equidigital number, since it uses as much as digits as its factorization.

64242017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177438.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 64242017 is about 8015.1117896134. Note that the first 3 decimals coincide. The cubic root of 64242017 is about 400.5035678658.

The spelling of 64242017 in words is "sixty-four million, two hundred forty-two thousand, seventeen".