82418047 has 4 divisors (see below), whose sum is σ = 83067136. Its totient is φ = 81768960.

The previous prime is 82418027. The next prime is 82418051. The reversal of 82418047 is 74081428.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82418047 - 2¹⁹ = 81893759 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 (82418027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324354 + ... + 324607.

It is an arithmetic number, because the mean of its divisors is an integer number (20766784).

Almost surely, 2^82418047 is an apocalyptic number.

82418047 is a deficient number, since it is larger than the sum of its proper divisors (649089).

82418047 is a wasteful number, since it uses less digits than its factorization.

82418047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649088.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 82418047 is about 9078.4385772004. The cubic root of 82418047 is about 435.1851891287.

The spelling of 82418047 in words is "eighty-two million, four hundred eighteen thousand, forty-seven".