64042617 has 16 divisors (see below), whose sum is σ = 86322368. Its totient is φ = 42232320.

The previous prime is 64042607. The next prime is 64042651. The reversal of 64042617 is 71624046.

It is not a de Polignac number, because 64042617 - 2⁸ = 64042361 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64042607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204453 + ... + 204765.

It is an arithmetic number, because the mean of its divisors is an integer number (5395148).

Almost surely, 2^64042617 is an apocalyptic number.

It is an amenable number.

64042617 is a deficient number, since it is larger than the sum of its proper divisors (22279751).

64042617 is a wasteful number, since it uses less digits than its factorization.

64042617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64042617 is about 8002.6631192372. The cubic root of 64042617 is about 400.0887657168.

The spelling of 64042617 in words is "sixty-four million, forty-two thousand, six hundred seventeen".