65672117 has 8 divisors (see below), whose sum is σ = 75436416. Its totient is φ = 56003472.

The previous prime is 65672111. The next prime is 65672143. The reversal of 65672117 is 71127656.

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

It is not a de Polignac number, because 65672117 - 2⁶ = 65672053 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 (65672111) 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, 22433 + ... + 25190.

It is an arithmetic number, because the mean of its divisors is an integer number (9429552).

Almost surely, 2^65672117 is an apocalyptic number.

It is an amenable number.

65672117 is a deficient number, since it is larger than the sum of its proper divisors (9764299).

65672117 is a wasteful number, since it uses less digits than its factorization.

65672117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47827.

The product of its digits is 17640, while the sum is 35.

The square root of 65672117 is about 8103.8334755843. The cubic root of 65672117 is about 403.4536716412.

The spelling of 65672117 in words is "sixty-five million, six hundred seventy-two thousand, one hundred seventeen".