87215041 has 2 divisors, whose sum is σ = 87215042. Its totient is φ = 87215040.

The previous prime is 87215021. The next prime is 87215053. The reversal of 87215041 is 14051278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77000625 + 10214416 = 8775^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 87215041 - 2¹³ = 87206849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87215021) 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 as a sum of consecutive naturals, namely, 43607520 + 43607521.

It is an arithmetic number, because the mean of its divisors is an integer number (43607521).

Almost surely, 2^87215041 is an apocalyptic number.

It is an amenable number.

87215041 is a deficient number, since it is larger than the sum of its proper divisors (1).

87215041 is an equidigital number, since it uses as much as digits as its factorization.

87215041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 87215041 is about 9338.8993462827. The cubic root of 87215041 is about 443.4695410651.

The spelling of 87215041 in words is "eighty-seven million, two hundred fifteen thousand, forty-one".