216724463 has 8 divisors (see below), whose sum is σ = 219492000. Its totient is φ = 213969888.

The previous prime is 216724457. The next prime is 216724477. The reversal of 216724463 is 364427612.

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 216724463 - 2¹⁸ = 216462319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216724493) 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, 32933 + ... + 38961.

It is an arithmetic number, because the mean of its divisors is an integer number (27436500).

Almost surely, 2^216724463 is an apocalyptic number.

216724463 is a deficient number, since it is larger than the sum of its proper divisors (2767537).

216724463 is a wasteful number, since it uses less digits than its factorization.

216724463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481.

The product of its digits is 48384, while the sum is 35.

The square root of 216724463 is about 14721.5645567990. The cubic root of 216724463 is about 600.6700505160.

The spelling of 216724463 in words is "two hundred sixteen million, seven hundred twenty-four thousand, four hundred sixty-three".