83215216 has 20 divisors (see below), whose sum is σ = 184262512. Its totient is φ = 35663616.

The previous prime is 83215201. The next prime is 83215217. The reversal of 83215216 is 61251238.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83215217) 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, 371385 + ... + 371608.

Almost surely, 2^83215216 is an apocalyptic number.

It is an amenable number.

83215216 is an abundant number, since it is smaller than the sum of its proper divisors (101047296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83215216 is a wasteful number, since it uses less digits than its factorization.

83215216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743008 (or 743002 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 83215216 is about 9122.2374448378. The cubic root of 83215216 is about 436.5837647979.

The spelling of 83215216 in words is "eighty-three million, two hundred fifteen thousand, two hundred sixteen".