216894058 has 8 divisors (see below), whose sum is σ = 344478852. Its totient is φ = 102067776.

The previous prime is 216894053. The next prime is 216894091. The reversal of 216894058 is 850498612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 186786889 + 30107169 = 13667^2 + 5487^2 .

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

It is not an unprimeable number, because it can be changed into a prime (216894053) 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, 3189585 + ... + 3189652.

Almost surely, 2^216894058 is an apocalyptic number.

216894058 is a deficient number, since it is larger than the sum of its proper divisors (127584794).

216894058 is a wasteful number, since it uses less digits than its factorization.

216894058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379256.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 216894058 is about 14727.3235178698. The cubic root of 216894058 is about 600.8266919258.

The spelling of 216894058 in words is "two hundred sixteen million, eight hundred ninety-four thousand, fifty-eight".