216793628 has 6 divisors (see below), whose sum is σ = 379388856. Its totient is φ = 108396812.

The previous prime is 216793627. The next prime is 216793637. The reversal of 216793628 is 826397612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216793627) 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 as a sum of consecutive naturals, namely, 27099200 + ... + 27099207.

It is an arithmetic number, because the mean of its divisors is an integer number (63231476).

Almost surely, 2^216793628 is an apocalyptic number.

It is an amenable number.

216793628 is a deficient number, since it is larger than the sum of its proper divisors (162595228).

216793628 is a wasteful number, since it uses less digits than its factorization.

216793628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54198411 (or 54198409 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 216793628 is about 14723.9134743451. The cubic root of 216793628 is about 600.7339425885.

The spelling of 216793628 in words is "two hundred sixteen million, seven hundred ninety-three thousand, six hundred twenty-eight".