82415845 has 8 divisors (see below), whose sum is σ = 98950176. Its totient is φ = 65898576.

The previous prime is 82415843. The next prime is 82415849. The reversal of 82415845 is 54851428.

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

It is a cyclic number.

It is not a de Polignac number, because 82415845 - 2¹ = 82415843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82415843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12034 + ... + 17596.

It is an arithmetic number, because the mean of its divisors is an integer number (12368772).

Almost surely, 2^82415845 is an apocalyptic number.

It is an amenable number.

82415845 is a deficient number, since it is larger than the sum of its proper divisors (16534331).

82415845 is a wasteful number, since it uses less digits than its factorization.

82415845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its digits is 51200, while the sum is 37.

The square root of 82415845 is about 9078.3173000287. The cubic root of 82415845 is about 435.1813134148.

The spelling of 82415845 in words is "eighty-two million, four hundred fifteen thousand, eight hundred forty-five".