65047679 has 4 divisors (see below), whose sum is σ = 65331960. Its totient is φ = 64763400.

The previous prime is 65047673. The next prime is 65047699. The reversal of 65047679 is 97674056.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65047679 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 (65047673) 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, 141797 + ... + 142254.

It is an arithmetic number, because the mean of its divisors is an integer number (16332990).

Almost surely, 2^65047679 is an apocalyptic number.

65047679 is a deficient number, since it is larger than the sum of its proper divisors (284281).

65047679 is a wasteful number, since it uses less digits than its factorization.

65047679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284280.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 65047679 is about 8065.2141323092. The cubic root of 65047679 is about 402.1708616688.

The spelling of 65047679 in words is "sixty-five million, forty-seven thousand, six hundred seventy-nine".