79585909 has 8 divisors (see below), whose sum is σ = 86277632. Its totient is φ = 72975600.

The previous prime is 79585873. The next prime is 79585921. The reversal of 79585909 is 90958597.

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 79585909 - 2⁹ = 79585397 is a prime.

It is a super-2 number, since 2×79585909² = 12667833822712562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79585949) 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, 18309 + ... + 22234.

It is an arithmetic number, because the mean of its divisors is an integer number (10784704).

Almost surely, 2^79585909 is an apocalyptic number.

It is an amenable number.

79585909 is a deficient number, since it is larger than the sum of its proper divisors (6691723).

79585909 is a wasteful number, since it uses less digits than its factorization.

79585909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40707.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The square root of 79585909 is about 8921.0934867874. The cubic root of 79585909 is about 430.1422082373.

The spelling of 79585909 in words is "seventy-nine million, five hundred eighty-five thousand, nine hundred nine".