216342715 has 8 divisors (see below), whose sum is σ = 270898848. Its totient is φ = 165549120.

The previous prime is 216342677. The next prime is 216342719. The reversal of 216342715 is 517243612.

216342715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 216342715 - 2⁷ = 216342587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216342719) 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, 940506 + ... + 940735.

It is an arithmetic number, because the mean of its divisors is an integer number (33862356).

Almost surely, 2^216342715 is an apocalyptic number.

216342715 is a deficient number, since it is larger than the sum of its proper divisors (54556133).

216342715 is a wasteful number, since it uses less digits than its factorization.

216342715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881269.

The product of its digits is 10080, while the sum is 31.

The square root of 216342715 is about 14708.5932366083. The cubic root of 216342715 is about 600.3171610223.

The spelling of 216342715 in words is "two hundred sixteen million, three hundred forty-two thousand, seven hundred fifteen".