87583289 has 2 divisors, whose sum is σ = 87583290. Its totient is φ = 87583288.

The previous prime is 87583273. The next prime is 87583297. The reversal of 87583289 is 98238578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 42250000 = 6733^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 87583289 - 2⁴ = 87583273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87583259) 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, 43791644 + 43791645.

It is an arithmetic number, because the mean of its divisors is an integer number (43791645).

Almost surely, 2^87583289 is an apocalyptic number.

It is an amenable number.

87583289 is a deficient number, since it is larger than the sum of its proper divisors (1).

87583289 is an equidigital number, since it uses as much as digits as its factorization.

87583289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The square root of 87583289 is about 9358.5943923220. The cubic root of 87583289 is about 444.0928183651.

The spelling of 87583289 in words is "eighty-seven million, five hundred eighty-three thousand, two hundred eighty-nine".