87322210 has 16 divisors (see below), whose sum is σ = 161014392. Its totient is φ = 34076800.

The previous prime is 87322199. The next prime is 87322211. The reversal of 87322210 is 1222378.

It can be written as a sum of positive squares in 4 ways, for example, as 22953681 + 64368529 = 4791^2 + 8023^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (87322211) 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, 106081 + ... + 106900.

Almost surely, 2^87322210 is an apocalyptic number.

87322210 is a deficient number, since it is larger than the sum of its proper divisors (73692182).

87322210 is a wasteful number, since it uses less digits than its factorization.

87322210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213029.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 87322210 is about 9344.6353593920. The cubic root of 87322210 is about 443.6511104114.

Adding to 87322210 its reverse (1222378), we get a palindrome (88544588).

The spelling of 87322210 in words is "eighty-seven million, three hundred twenty-two thousand, two hundred ten".