8079745 has 4 divisors (see below), whose sum is σ = 9695700. Its totient is φ = 6463792.

The previous prime is 8079707. The next prime is 8079761. The reversal of 8079745 is 5479708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 5419584 = 1631^2 + 2328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8079745 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8079698 and 8079707.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 807970 + ... + 807979.

It is an arithmetic number, because the mean of its divisors is an integer number (2423925).

Almost surely, 2^8079745 is an apocalyptic number.

It is an amenable number.

8079745 is a deficient number, since it is larger than the sum of its proper divisors (1615955).

8079745 is a wasteful number, since it uses less digits than its factorization.

8079745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615954.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 8079745 is about 2842.4892260130. The cubic root of 8079745 is about 200.6623457359.

The spelling of 8079745 in words is "eight million, seventy-nine thousand, seven hundred forty-five".