65799938 has 8 divisors (see below), whose sum is σ = 98780688. Its totient is φ = 32873044.

The previous prime is 65799931. The next prime is 65799991. The reversal of 65799938 is 83999756.

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

It is not an unprimeable number, because it can be changed into a prime (65799931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10256 + ... + 15387.

It is an arithmetic number, because the mean of its divisors is an integer number (12347586).

Almost surely, 2^65799938 is an apocalyptic number.

65799938 is a deficient number, since it is larger than the sum of its proper divisors (32980750).

65799938 is a wasteful number, since it uses less digits than its factorization.

65799938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26928.

The product of its digits is 3674160, while the sum is 56.

The square root of 65799938 is about 8111.7160946374. The cubic root of 65799938 is about 403.7152561744.

The spelling of 65799938 in words is "sixty-five million, seven hundred ninety-nine thousand, nine hundred thirty-eight".