216753267 has 4 divisors (see below), whose sum is σ = 289004360. Its totient is φ = 144502176.

The previous prime is 216753259. The next prime is 216753283. The reversal of 216753267 is 762357612.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 216753267 - 2³ = 216753259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216753167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36125542 + ... + 36125547.

It is an arithmetic number, because the mean of its divisors is an integer number (72251090).

Almost surely, 2^216753267 is an apocalyptic number.

216753267 is a deficient number, since it is larger than the sum of its proper divisors (72251093).

216753267 is an equidigital number, since it uses as much as digits as its factorization.

216753267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72251092.

The product of its digits is 105840, while the sum is 39.

The square root of 216753267 is about 14722.5428170544. The cubic root of 216753267 is about 600.6966602389.

It can be divided in two parts, 21675 and 3267, that multiplied together give a square (70812225 = 8415²).

The spelling of 216753267 in words is "two hundred sixteen million, seven hundred fifty-three thousand, two hundred sixty-seven".