216535714 has 4 divisors (see below), whose sum is σ = 324803574. Its totient is φ = 108267856.

The previous prime is 216535667. The next prime is 216535727. The reversal of 216535714 is 417535612.

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

It can be written as a sum of positive squares in only one way, i.e., 216531225 + 4489 = 14715^2 + 67^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 216535714.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54133927 + ... + 54133930.

Almost surely, 2^216535714 is an apocalyptic number.

216535714 is a deficient number, since it is larger than the sum of its proper divisors (108267860).

216535714 is a wasteful number, since it uses less digits than its factorization.

216535714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108267859.

The product of its digits is 25200, while the sum is 34.

The square root of 216535714 is about 14715.1525306400. The cubic root of 216535714 is about 600.4956219669.

The spelling of 216535714 in words is "two hundred sixteen million, five hundred thirty-five thousand, seven hundred fourteen".