82215384 has 16 divisors (see below), whose sum is σ = 205538520. Its totient is φ = 27405120.

The previous prime is 82215347. The next prime is 82215403. The reversal of 82215384 is 48351228.

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, 1712797 + ... + 1712844.

Almost surely, 2^82215384 is an apocalyptic number.

It is an amenable number.

82215384 is an abundant number, since it is smaller than the sum of its proper divisors (123323136).

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

82215384 is a wasteful number, since it uses less digits than its factorization.

82215384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425650 (or 3425646 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 82215384 is about 9067.2699309108. The cubic root of 82215384 is about 434.8281948040.

The spelling of 82215384 in words is "eighty-two million, two hundred fifteen thousand, three hundred eighty-four".