820182485 has 8 divisors (see below), whose sum is σ = 991732896. Its totient is φ = 651136720.

The previous prime is 820182413. The next prime is 820182487. The reversal of 820182485 is 584281028.

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

It is not a de Polignac number, because 820182485 - 2¹⁶ = 820116949 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 (820182487) 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, 625439 + ... + 626748.

It is an arithmetic number, because the mean of its divisors is an integer number (123966612).

Almost surely, 2^820182485 is an apocalyptic number.

It is an amenable number.

820182485 is a deficient number, since it is larger than the sum of its proper divisors (171550411).

820182485 is a wasteful number, since it uses less digits than its factorization.

820182485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252323.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 820182485 is about 28638.8282756121. The cubic root of 820182485 is about 936.0595897515.

The spelling of 820182485 in words is "eight hundred twenty million, one hundred eighty-two thousand, four hundred eighty-five".