8709073 has 4 divisors (see below), whose sum is σ = 8831808. Its totient is φ = 8586340.

The previous prime is 8709067. The next prime is 8709079. The reversal of 8709073 is 3709078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8709067) and next prime (8709079).

It is a cyclic number.

It is not a de Polignac number, because 8709073 - 2²¹ = 6611921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8709079) 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 in 3 ways as a sum of consecutive naturals, for example, 61261 + ... + 61402.

It is an arithmetic number, because the mean of its divisors is an integer number (2207952).

Almost surely, 2^8709073 is an apocalyptic number.

It is an amenable number.

8709073 is a deficient number, since it is larger than the sum of its proper divisors (122735).

8709073 is a wasteful number, since it uses less digits than its factorization.

8709073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122734.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 8709073 is about 2951.1138575121. The cubic root of 8709073 is about 205.7424830680.

The spelling of 8709073 in words is "eight million, seven hundred nine thousand, seventy-three".