65988212 has 12 divisors (see below), whose sum is σ = 119204736. Its totient is φ = 31929720.

The previous prime is 65988211. The next prime is 65988239. The reversal of 65988212 is 21288956.

It is a self number, because there is not a number n which added to its sum of digits gives 65988212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65988211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265958 + ... + 266205.

It is an arithmetic number, because the mean of its divisors is an integer number (9933728).

Almost surely, 2^65988212 is an apocalyptic number.

65988212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65988212 is a deficient number, since it is larger than the sum of its proper divisors (53216524).

65988212 is a wasteful number, since it uses less digits than its factorization.

65988212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532198 (or 532196 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 65988212 is about 8123.3128709905. The cubic root of 65988212 is about 404.0999409643.

The spelling of 65988212 in words is "sixty-five million, nine hundred eighty-eight thousand, two hundred twelve".