216746612 has 12 divisors (see below), whose sum is σ = 384108480. Its totient is φ = 107001336.

The previous prime is 216746611. The next prime is 216746671. The reversal of 216746612 is 216647612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216746611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342638 + ... + 343269.

It is an arithmetic number, because the mean of its divisors is an integer number (32009040).

Almost surely, 2^216746612 is an apocalyptic number.

It is an amenable number.

216746612 is a deficient number, since it is larger than the sum of its proper divisors (167361868).

216746612 is a wasteful number, since it uses less digits than its factorization.

216746612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685990 (or 685988 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 216746612 is about 14722.3168013733. The cubic root of 216746612 is about 600.6905124235.

The spelling of 216746612 in words is "two hundred sixteen million, seven hundred forty-six thousand, six hundred twelve".