80579609 has 8 divisors (see below), whose sum is σ = 93076128. Its totient is φ = 68944960.

The previous prime is 80579593. The next prime is 80579651. The reversal of 80579609 is 90697508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80579609 - 2⁴ = 80579593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80579609.

It is not an unprimeable number, because it can be changed into a prime (80579669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215267 + ... + 215640.

It is an arithmetic number, because the mean of its divisors is an integer number (11634516).

Almost surely, 2^80579609 is an apocalyptic number.

It is an amenable number.

80579609 is a deficient number, since it is larger than the sum of its proper divisors (12496519).

80579609 is a wasteful number, since it uses less digits than its factorization.

80579609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430935.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 80579609 is about 8976.6145622946. The cubic root of 80579609 is about 431.9250430791.

The spelling of 80579609 in words is "eighty million, five hundred seventy-nine thousand, six hundred nine".