87481211 has 2 divisors, whose sum is σ = 87481212. Its totient is φ = 87481210.

The previous prime is 87481181. The next prime is 87481223. The reversal of 87481211 is 11218478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87481211 - 2¹⁰ = 87480187 is a prime.

It is not a weakly prime, because it can be changed into another prime (87481231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43740605 + 43740606.

It is an arithmetic number, because the mean of its divisors is an integer number (43740606).

Almost surely, 2^87481211 is an apocalyptic number.

87481211 is a deficient number, since it is larger than the sum of its proper divisors (1).

87481211 is an equidigital number, since it uses as much as digits as its factorization.

87481211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 32.

The square root of 87481211 is about 9353.1390987197. The cubic root of 87481211 is about 443.9202217807.

Adding to 87481211 its reverse (11218478), we get a palindrome (98699689).

The spelling of 87481211 in words is "eighty-seven million, four hundred eighty-one thousand, two hundred eleven".