79082609 has 4 divisors (see below), whose sum is σ = 79100400. Its totient is φ = 79064820.

The previous prime is 79082603. The next prime is 79082611. The reversal of 79082609 is 90628097.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 79082609 - 2⁴ = 79082593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79082603) 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, 4154 + ... + 13244.

It is an arithmetic number, because the mean of its divisors is an integer number (19775100).

Almost surely, 2^79082609 is an apocalyptic number.

It is an amenable number.

79082609 is a deficient number, since it is larger than the sum of its proper divisors (17791).

79082609 is an equidigital number, since it uses as much as digits as its factorization.

79082609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 79082609 is about 8892.8403224167. The cubic root of 79082609 is about 429.2335526422.

The spelling of 79082609 in words is "seventy-nine million, eighty-two thousand, six hundred nine".