64061317 has 4 divisors (see below), whose sum is σ = 64106860. Its totient is φ = 64015776.

The previous prime is 64061303. The next prime is 64061323. The reversal of 64061317 is 71316046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49575681 + 14485636 = 7041^2 + 3806^2 .

It is a cyclic number.

It is not a de Polignac number, because 64061317 - 2⁷ = 64061189 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 (64061017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20592 + ... + 23497.

It is an arithmetic number, because the mean of its divisors is an integer number (16026715).

Almost surely, 2^64061317 is an apocalyptic number.

It is an amenable number.

64061317 is a deficient number, since it is larger than the sum of its proper divisors (45543).

64061317 is a wasteful number, since it uses less digits than its factorization.

64061317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45542.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 64061317 is about 8003.8313950258. The cubic root of 64061317 is about 400.1277029755.

The spelling of 64061317 in words is "sixty-four million, sixty-one thousand, three hundred seventeen".