64759679 has 4 divisors (see below), whose sum is σ = 65030880. Its totient is φ = 64488480.

The previous prime is 64759649. The next prime is 64759691. The reversal of 64759679 is 97695746.

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

It is a cyclic number.

It is not a de Polignac number, because 64759679 - 2²⁴ = 47982463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64759679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64759649) 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, 135242 + ... + 135719.

It is an arithmetic number, because the mean of its divisors is an integer number (16257720).

Almost surely, 2^64759679 is an apocalyptic number.

64759679 is a deficient number, since it is larger than the sum of its proper divisors (271201).

64759679 is a wasteful number, since it uses less digits than its factorization.

64759679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271200.

The product of its digits is 2857680, while the sum is 53.

The square root of 64759679 is about 8047.3398710381. The cubic root of 64759679 is about 401.5764434862.

The spelling of 64759679 in words is "sixty-four million, seven hundred fifty-nine thousand, six hundred seventy-nine".