87329705 has 4 divisors (see below), whose sum is σ = 104795652. Its totient is φ = 69863760.

The previous prime is 87329687. The next prime is 87329707. The reversal of 87329705 is 50792378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26925721 + 60403984 = 5189^2 + 7772^2 .

It is not a de Polignac number, because 87329705 - 2¹⁴ = 87313321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87329707) 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 in 3 ways as a sum of consecutive naturals, for example, 8732966 + ... + 8732975.

It is an arithmetic number, because the mean of its divisors is an integer number (26198913).

Almost surely, 2^87329705 is an apocalyptic number.

It is an amenable number.

87329705 is a deficient number, since it is larger than the sum of its proper divisors (17465947).

87329705 is a wasteful number, since it uses less digits than its factorization.

87329705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17465946.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 87329705 is about 9345.0363830217. The cubic root of 87329705 is about 443.6638031347.

The spelling of 87329705 in words is "eighty-seven million, three hundred twenty-nine thousand, seven hundred five".