216750047 has 8 divisors (see below), whose sum is σ = 224919552. Its totient is φ = 208654200.

The previous prime is 216749993. The next prime is 216750059. The reversal of 216750047 is 740057612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216750047 - 2⁸ = 216749791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216749995 and 216750022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216750647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12383 + ... + 24224.

It is an arithmetic number, because the mean of its divisors is an integer number (28114944).

Almost surely, 2^216750047 is an apocalyptic number.

216750047 is a deficient number, since it is larger than the sum of its proper divisors (8169505).

216750047 is a wasteful number, since it uses less digits than its factorization.

216750047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36829.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 216750047 is about 14722.4334605391. The cubic root of 216750047 is about 600.6936856542.

The spelling of 216750047 in words is "two hundred sixteen million, seven hundred fifty thousand, forty-seven".