87011329 has 2 divisors, whose sum is σ = 87011330. Its totient is φ = 87011328.

The previous prime is 87011297. The next prime is 87011333. The reversal of 87011329 is 92311078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 24522304 = 7905^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 87011329 - 2⁵ = 87011297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87011329.

It is not a weakly prime, because it can be changed into another prime (87011929) 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, 43505664 + 43505665.

It is an arithmetic number, because the mean of its divisors is an integer number (43505665).

Almost surely, 2^87011329 is an apocalyptic number.

It is an amenable number.

87011329 is a deficient number, since it is larger than the sum of its proper divisors (1).

87011329 is an equidigital number, since it uses as much as digits as its factorization.

87011329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 87011329 is about 9327.9863314651. The cubic root of 87011329 is about 443.1239947976.

The spelling of 87011329 in words is "eighty-seven million, eleven thousand, three hundred twenty-nine".