79419009 has 8 divisors (see below), whose sum is σ = 108474912. Its totient is φ = 51654560.

The previous prime is 79419007. The next prime is 79419013. The reversal of 79419009 is 90091497.

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 79419009 - 2¹ = 79419007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79419007) 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, 322719 + ... + 322964.

It is an arithmetic number, because the mean of its divisors is an integer number (13559364).

Almost surely, 2^79419009 is an apocalyptic number.

It is an amenable number.

79419009 is a deficient number, since it is larger than the sum of its proper divisors (29055903).

79419009 is a wasteful number, since it uses less digits than its factorization.

79419009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645727.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 79419009 is about 8911.7343429885. The cubic root of 79419009 is about 429.8413133584.

The spelling of 79419009 in words is "seventy-nine million, four hundred nineteen thousand, nine".