216263371 has 8 divisors (see below), whose sum is σ = 218687040. Its totient is φ = 213847368.

The previous prime is 216263363. The next prime is 216263381. The reversal of 216263371 is 173362612.

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

It is a cyclic number.

It is not a de Polignac number, because 216263371 - 2³ = 216263363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216263351) 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 7 ways as a sum of consecutive naturals, for example, 68980 + ... + 72046.

It is an arithmetic number, because the mean of its divisors is an integer number (27335880).

Almost surely, 2^216263371 is an apocalyptic number.

216263371 is a deficient number, since it is larger than the sum of its proper divisors (2423669).

216263371 is a wasteful number, since it uses less digits than its factorization.

216263371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833.

The product of its digits is 9072, while the sum is 31.

The square root of 216263371 is about 14705.8957904644. The cubic root of 216263371 is about 600.2437629896.

The spelling of 216263371 in words is "two hundred sixteen million, two hundred sixty-three thousand, three hundred seventy-one".