216852701 has 4 divisors (see below), whose sum is σ = 233533692. Its totient is φ = 200171712.

The previous prime is 216852679. The next prime is 216852703. The reversal of 216852701 is 107258612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41925625 + 174927076 = 6475^2 + 13226^2 .

It is not a de Polignac number, because 216852701 - 2⁶ = 216852637 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 (216852703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8340476 + ... + 8340501.

It is an arithmetic number, because the mean of its divisors is an integer number (58383423).

Almost surely, 2^216852701 is an apocalyptic number.

It is an amenable number.

216852701 is a deficient number, since it is larger than the sum of its proper divisors (16680991).

216852701 is a wasteful number, since it uses less digits than its factorization.

216852701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680990.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 216852701 is about 14725.9193600943. The cubic root of 216852701 is about 600.7885012852.

The spelling of 216852701 in words is "two hundred sixteen million, eight hundred fifty-two thousand, seven hundred one".