82213715 has 8 divisors (see below), whose sum is σ = 99530208. Its totient is φ = 65188480.

The previous prime is 82213699. The next prime is 82213739. The reversal of 82213715 is 51731228.

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

It is not a de Polignac number, because 82213715 - 2⁴ = 82213699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72191 + ... + 73320.

It is an arithmetic number, because the mean of its divisors is an integer number (12441276).

Almost surely, 2^82213715 is an apocalyptic number.

82213715 is a deficient number, since it is larger than the sum of its proper divisors (17316493).

82213715 is a wasteful number, since it uses less digits than its factorization.

82213715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145629.

The product of its digits is 3360, while the sum is 29.

The square root of 82213715 is about 9067.1778961262. The cubic root of 82213715 is about 434.8252523978.

It can be divided in two parts, 82213 and 715, that added together give a palindrome (82928).

The spelling of 82213715 in words is "eighty-two million, two hundred thirteen thousand, seven hundred fifteen".