87234211 has 4 divisors (see below), whose sum is σ = 88049592. Its totient is φ = 86418832.

The previous prime is 87234181. The next prime is 87234223. The reversal of 87234211 is 11243278.

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 87234211 - 2⁵ = 87234179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87234211.

It is not an unprimeable number, because it can be changed into a prime (87234241) 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 3 ways as a sum of consecutive naturals, for example, 407530 + ... + 407743.

It is an arithmetic number, because the mean of its divisors is an integer number (22012398).

Almost surely, 2^87234211 is an apocalyptic number.

87234211 is a deficient number, since it is larger than the sum of its proper divisors (815381).

87234211 is a wasteful number, since it uses less digits than its factorization.

87234211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815380.

The product of its digits is 2688, while the sum is 28.

The square root of 87234211 is about 9339.9256421023. The cubic root of 87234211 is about 443.5020304469.

Adding to 87234211 its reverse (11243278), we get a palindrome (98477489).

The spelling of 87234211 in words is "eighty-seven million, two hundred thirty-four thousand, two hundred eleven".