87329709 has 12 divisors (see below), whose sum is σ = 127107552. Its totient is φ = 57774600.

The previous prime is 87329707. The next prime is 87329741. The reversal of 87329709 is 90792378.

It is not a de Polignac number, because 87329709 - 2¹ = 87329707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87329707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35857 + ... + 38214.

It is an arithmetic number, because the mean of its divisors is an integer number (10592296).

Almost surely, 2^87329709 is an apocalyptic number.

It is an amenable number.

87329709 is a deficient number, since it is larger than the sum of its proper divisors (39777843).

87329709 is a wasteful number, since it uses less digits than its factorization.

87329709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74208 (or 74205 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 87329709 is about 9345.0365970391. The cubic root of 87329709 is about 443.6638099084.

The spelling of 87329709 in words is "eighty-seven million, three hundred twenty-nine thousand, seven hundred nine".