82213916 has 6 divisors (see below), whose sum is σ = 143874360. Its totient is φ = 41106956.

The previous prime is 82213903. The next prime is 82213919. The reversal of 82213916 is 61931228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82213919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276736 + ... + 10276743.

It is an arithmetic number, because the mean of its divisors is an integer number (23979060).

Almost surely, 2^82213916 is an apocalyptic number.

It is an amenable number.

82213916 is a deficient number, since it is larger than the sum of its proper divisors (61660444).

82213916 is a wasteful number, since it uses less digits than its factorization.

82213916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20553483 (or 20553481 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 82213916 is about 9067.1889800533. The cubic root of 82213916 is about 434.8256067580.

The spelling of 82213916 in words is "eighty-two million, two hundred thirteen thousand, nine hundred sixteen".