82618873 has 4 divisors (see below), whose sum is σ = 83391120. Its totient is φ = 81846628.

The previous prime is 82618831. The next prime is 82618889. The reversal of 82618873 is 37881628.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82618873 - 2¹³ = 82610681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82610873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385963 + ... + 386176.

It is an arithmetic number, because the mean of its divisors is an integer number (20847780).

Almost surely, 2^82618873 is an apocalyptic number.

It is an amenable number.

82618873 is a deficient number, since it is larger than the sum of its proper divisors (772247).

82618873 is a wasteful number, since it uses less digits than its factorization.

82618873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772246.

The product of its digits is 129024, while the sum is 43.

The square root of 82618873 is about 9089.4924500766. The cubic root of 82618873 is about 435.5383707206.

The spelling of 82618873 in words is "eighty-two million, six hundred eighteen thousand, eight hundred seventy-three".