82218597 has 8 divisors (see below), whose sum is σ = 109686720. Its totient is φ = 54781440.

The previous prime is 82218593. The next prime is 82218601. The reversal of 82218597 is 79581228.

It is an interprime number because it is at equal distance from previous prime (82218593) and next prime (82218601).

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

It is not a de Polignac number, because 82218597 - 2² = 82218593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82218593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604 + ... + 12837.

It is an arithmetic number, because the mean of its divisors is an integer number (13710840).

Almost surely, 2^82218597 is an apocalyptic number.

It is an amenable number.

82218597 is a deficient number, since it is larger than the sum of its proper divisors (27468123).

82218597 is a wasteful number, since it uses less digits than its factorization.

82218597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15483.

The product of its digits is 80640, while the sum is 42.

The square root of 82218597 is about 9067.4471048912. The cubic root of 82218597 is about 434.8338591323.

The spelling of 82218597 in words is "eighty-two million, two hundred eighteen thousand, five hundred ninety-seven".