216948086 has 8 divisors (see below), whose sum is σ = 330757104. Its totient is φ = 106695720.

The previous prime is 216948071. The next prime is 216948103. The reversal of 216948086 is 680849612.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889010 + ... + 889253.

It is an arithmetic number, because the mean of its divisors is an integer number (41344638).

Almost surely, 2^216948086 is an apocalyptic number.

216948086 is a deficient number, since it is larger than the sum of its proper divisors (113809018).

216948086 is a wasteful number, since it uses less digits than its factorization.

216948086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778326.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 216948086 is about 14729.1576812797. The cubic root of 216948086 is about 600.8765761409.

The spelling of 216948086 in words is "two hundred sixteen million, nine hundred forty-eight thousand, eighty-six".