79434505 has 8 divisors (see below), whose sum is σ = 96884424. Its totient is φ = 62505600.

The previous prime is 79434503. The next prime is 79434517. The reversal of 79434505 is 50543497.

It can be written as a sum of positive squares in 4 ways, for example, as 99856 + 79334649 = 316^2 + 8907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79434505 - 2¹ = 79434503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79434503) 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 7 ways as a sum of consecutive naturals, for example, 129916 + ... + 130525.

It is an arithmetic number, because the mean of its divisors is an integer number (12110553).

Almost surely, 2^79434505 is an apocalyptic number.

It is an amenable number.

79434505 is a deficient number, since it is larger than the sum of its proper divisors (17449919).

79434505 is a wasteful number, since it uses less digits than its factorization.

79434505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260507.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 79434505 is about 8912.6037160866. The cubic root of 79434505 is about 429.8692679918.

The spelling of 79434505 in words is "seventy-nine million, four hundred thirty-four thousand, five hundred five".