216363850 has 12 divisors (see below), whose sum is σ = 402436854. Its totient is φ = 86545520.

The previous prime is 216363841. The next prime is 216363859. The reversal of 216363850 is 58363612.

It is an interprime number because it is at equal distance from previous prime (216363841) and next prime (216363859).

It can be written as a sum of positive squares in 3 ways, for example, as 116143729 + 100220121 = 10777^2 + 10011^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (216363859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2163589 + ... + 2163688.

Almost surely, 2^216363850 is an apocalyptic number.

216363850 is a deficient number, since it is larger than the sum of its proper divisors (186073004).

216363850 is a wasteful number, since it uses less digits than its factorization.

216363850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327289 (or 4327284 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 216363850 is about 14709.3116766217. The cubic root of 216363850 is about 600.3367091577.

The spelling of 216363850 in words is "two hundred sixteen million, three hundred sixty-three thousand, eight hundred fifty".