60664517 has 4 divisors (see below), whose sum is σ = 64233036. Its totient is φ = 57096000.

The previous prime is 60664481. The next prime is 60664537. The reversal of 60664517 is 71546606.

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 44009956 + 16654561 = 6634^2 + 4081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60664517 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 (60664537) 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, 1784234 + ... + 1784267.

It is an arithmetic number, because the mean of its divisors is an integer number (16058259).

Almost surely, 2^60664517 is an apocalyptic number.

It is an amenable number.

60664517 is a deficient number, since it is larger than the sum of its proper divisors (3568519).

60664517 is a wasteful number, since it uses less digits than its factorization.

60664517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568518.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 60664517 is about 7788.7429666153. The cubic root of 60664517 is about 392.9267367051.

The spelling of 60664517 in words is "sixty million, six hundred sixty-four thousand, five hundred seventeen".