79479505 has 48 divisors (see below), whose sum is σ = 120113280. Its totient is φ = 49282560.

The previous prime is 79479481. The next prime is 79479509. The reversal of 79479505 is 50597497.

79479505 = T₁₉₀ + T₁₉₁ + ... + T₇₈₄.

It is a happy number.

It is not a de Polignac number, because 79479505 - 2¹⁵ = 79446737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79479509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 571726 + ... + 571864.

It is an arithmetic number, because the mean of its divisors is an integer number (2502360).

Almost surely, 2^79479505 is an apocalyptic number.

It is an amenable number.

79479505 is a deficient number, since it is larger than the sum of its proper divisors (40633775).

79479505 is a wasteful number, since it uses less digits than its factorization.

79479505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 79479505 is about 8915.1278734520. The cubic root of 79479505 is about 429.9504269514.

The spelling of 79479505 in words is "seventy-nine million, four hundred seventy-nine thousand, five hundred five".