76009 has 4 divisors (see below), whose sum is σ = 78660. Its totient is φ = 73360.

The previous prime is 76003. The next prime is 76031. The reversal of 76009 is 90067.

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 51984 + 24025 = 228^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 76009 - 2³ = 76001 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (19665).

2⁷⁶⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

76009 is a deficient number, since it is larger than the sum of its proper divisors (2651).

76009 is a wasteful number, since it uses less digits than its factorization.

76009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 76009 is about 275.6972977742. The cubic root of 76009 is about 42.3599078122.

The spelling of 76009 in words is "seventy-six thousand, nine".