65799212 has 12 divisors (see below), whose sum is σ = 115279080. Its totient is φ = 32862336.

The previous prime is 65799199. The next prime is 65799221. The reversal of 65799212 is 21299756.

It is a self number, because there is not a number n which added to its sum of digits gives 65799212.

It is an unprimeable number.

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, 5138 + ... + 12569.

It is an arithmetic number, because the mean of its divisors is an integer number (9606590).

Almost surely, 2^65799212 is an apocalyptic number.

It is an amenable number.

65799212 is a deficient number, since it is larger than the sum of its proper divisors (49479868).

65799212 is a wasteful number, since it uses less digits than its factorization.

65799212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18640 (or 18638 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 65799212 is about 8111.6713444271. The cubic root of 65799212 is about 403.7137713789.

The spelling of 65799212 in words is "sixty-five million, seven hundred ninety-nine thousand, two hundred twelve".