216576708 has 24 divisors (see below), whose sum is σ = 507618048. Its totient is φ = 71867616.

The previous prime is 216576707. The next prime is 216576743. The reversal of 216576708 is 807675612.

It is a self number, because there is not a number n which added to its sum of digits gives 216576708.

It is not an unprimeable number, because it can be changed into a prime (216576707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37791 + ... + 43142.

It is an arithmetic number, because the mean of its divisors is an integer number (21150752).

Almost surely, 2^216576708 is an apocalyptic number.

It is an amenable number.

216576708 is an abundant number, since it is smaller than the sum of its proper divisors (291041340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216576708 is a wasteful number, since it uses less digits than its factorization.

216576708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81163 (or 81161 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 216576708 is about 14716.5453826637. The cubic root of 216576708 is about 600.5335143523.

The spelling of 216576708 in words is "two hundred sixteen million, five hundred seventy-six thousand, seven hundred eight".