79446609 has 16 divisors (see below), whose sum is σ = 128399040. Its totient is φ = 48149280.

The previous prime is 79446607. The next prime is 79446611. The reversal of 79446609 is 90664497.

It is an interprime number because it is at equal distance from previous prime (79446607) and next prime (79446611).

It is not a de Polignac number, because 79446609 - 2¹ = 79446607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79446607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133452 + ... + 134045.

It is an arithmetic number, because the mean of its divisors is an integer number (8024940).

Almost surely, 2^79446609 is an apocalyptic number.

It is an amenable number.

79446609 is a deficient number, since it is larger than the sum of its proper divisors (48952431).

79446609 is a wasteful number, since it uses less digits than its factorization.

79446609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267517 (or 267511 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 79446609 is about 8913.2827286023. The cubic root of 79446609 is about 429.8911009612.

The spelling of 79446609 in words is "seventy-nine million, four hundred forty-six thousand, six hundred nine".