216893716 has 24 divisors (see below), whose sum is σ = 409205664. Its totient is φ = 99996000.

The previous prime is 216893689. The next prime is 216893717. The reversal of 216893716 is 617398612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216893717) 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, 65091 + ... + 68341.

It is an arithmetic number, because the mean of its divisors is an integer number (17050236).

Almost surely, 2^216893716 is an apocalyptic number.

216893716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216893716 is a deficient number, since it is larger than the sum of its proper divisors (192311948).

216893716 is a wasteful number, since it uses less digits than its factorization.

216893716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551 (or 4549 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 216893716 is about 14727.3119067941. The cubic root of 216893716 is about 600.8263761298.

The spelling of 216893716 in words is "two hundred sixteen million, eight hundred ninety-three thousand, seven hundred sixteen".