89320709 has 4 divisors (see below), whose sum is σ = 89346060. Its totient is φ = 89295360.

The previous prime is 89320697. The next prime is 89320717. The reversal of 89320709 is 90702398.

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 81396484 + 7924225 = 9022^2 + 2815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89320709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89320739) 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, 6332 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (22336515).

Almost surely, 2^89320709 is an apocalyptic number.

It is an amenable number.

89320709 is a deficient number, since it is larger than the sum of its proper divisors (25351).

89320709 is a wasteful number, since it uses less digits than its factorization.

89320709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25350.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 89320709 is about 9450.9633900465. The cubic root of 89320709 is about 447.0101527989.

The spelling of 89320709 in words is "eighty-nine million, three hundred twenty thousand, seven hundred nine".