64679017 has 8 divisors (see below), whose sum is σ = 71353800. Its totient is φ = 58247040.

The previous prime is 64679011. The next prime is 64679047. The reversal of 64679017 is 71097646.

It can be written as a sum of positive squares in 4 ways, for example, as 4910656 + 59768361 = 2216^2 + 7731^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64679017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64679011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60142 + ... + 61207.

It is an arithmetic number, because the mean of its divisors is an integer number (8919225).

Almost surely, 2^64679017 is an apocalyptic number.

It is an amenable number.

64679017 is a deficient number, since it is larger than the sum of its proper divisors (6674783).

64679017 is a wasteful number, since it uses less digits than its factorization.

64679017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121403.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 64679017 is about 8042.3265912297. The cubic root of 64679017 is about 401.4096451656.

The spelling of 64679017 in words is "sixty-four million, six hundred seventy-nine thousand, seventeen".