87267841 has 2 divisors, whose sum is σ = 87267842. Its totient is φ = 87267840.

The previous prime is 87267751. The next prime is 87267847. The reversal of 87267841 is 14876278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84364225 + 2903616 = 9185^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 87267841 - 2¹⁷ = 87136769 is a prime.

It is not a weakly prime, because it can be changed into another prime (87267847) 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 as a sum of consecutive naturals, namely, 43633920 + 43633921.

It is an arithmetic number, because the mean of its divisors is an integer number (43633921).

Almost surely, 2^87267841 is an apocalyptic number.

It is an amenable number.

87267841 is a deficient number, since it is larger than the sum of its proper divisors (1).

87267841 is an equidigital number, since it uses as much as digits as its factorization.

87267841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 87267841 is about 9341.7258041542. The cubic root of 87267841 is about 443.5590151890.

The spelling of 87267841 in words is "eighty-seven million, two hundred sixty-seven thousand, eight hundred forty-one".