8030706505 has 4 divisors (see below), whose sum is σ = 9636847812. Its totient is φ = 6424565200.

The previous prime is 8030706407. The next prime is 8030706511. The reversal of 8030706505 is 5056070308.

It is a happy number.

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 4544512569 + 3486193936 = 67413^2 + 59044^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8030706505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803070646 + ... + 803070655.

It is an arithmetic number, because the mean of its divisors is an integer number (2409211953).

Almost surely, 2^8030706505 is an apocalyptic number.

It is an amenable number.

8030706505 is a deficient number, since it is larger than the sum of its proper divisors (1606141307).

8030706505 is a wasteful number, since it uses less digits than its factorization.

8030706505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606141306.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 8030706505 is about 89614.2092806716. The cubic root of 8030706505 is about 2002.5556084585. Note that the first 3 decimals are identical.

The spelling of 8030706505 in words is "eight billion, thirty million, seven hundred six thousand, five hundred five".