87662329 has 2 divisors, whose sum is σ = 87662330. Its totient is φ = 87662328.

The previous prime is 87662303. The next prime is 87662339. The reversal of 87662329 is 92326678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78499600 + 9162729 = 8860^2 + 3027^2 .

It is a cyclic number.

It is not a de Polignac number, because 87662329 - 2⁹ = 87661817 is a prime.

It is not a weakly prime, because it can be changed into another prime (87662339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43831164 + 43831165.

It is an arithmetic number, because the mean of its divisors is an integer number (43831165).

Almost surely, 2^87662329 is an apocalyptic number.

It is an amenable number.

87662329 is a deficient number, since it is larger than the sum of its proper divisors (1).

87662329 is an equidigital number, since it uses as much as digits as its factorization.

87662329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 87662329 is about 9362.8162963929. The cubic root of 87662329 is about 444.2263694988.

The spelling of 87662329 in words is "eighty-seven million, six hundred sixty-two thousand, three hundred twenty-nine".