87822873 has 12 divisors (see below), whose sum is σ = 131553968. Its totient is φ = 58548420.

The previous prime is 87822803. The next prime is 87822877. The reversal of 87822873 is 37822878.

It is not a de Polignac number, because 87822873 - 2¹⁰ = 87821849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87822877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180463 + ... + 180948.

Almost surely, 2^87822873 is an apocalyptic number.

It is an amenable number.

87822873 is a deficient number, since it is larger than the sum of its proper divisors (43731095).

87822873 is an equidigital number, since it uses as much as digits as its factorization.

87822873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361426 (or 361414 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 87822873 is about 9371.3858633609. The cubic root of 87822873 is about 444.4973881767.

The spelling of 87822873 in words is "eighty-seven million, eight hundred twenty-two thousand, eight hundred seventy-three".