8072705669 has 16 divisors (see below), whose sum is σ = 9959051520. Its totient is φ = 6390384000.

The previous prime is 8072705659. The next prime is 8072705671. The reversal of 8072705669 is 9665072708.

It is not a de Polignac number, because 8072705669 - 2¹⁶ = 8072640133 is a prime.

It is a super-2 number, since 2×8072705669² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072705639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859832 + ... + 869169.

It is an arithmetic number, because the mean of its divisors is an integer number (622440720).

Almost surely, 2^8072705669 is an apocalyptic number.

It is an amenable number.

8072705669 is a deficient number, since it is larger than the sum of its proper divisors (1886345851).

8072705669 is a wasteful number, since it uses less digits than its factorization.

8072705669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729060.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 8072705669 is about 89848.2368719609. The cubic root of 8072705669 is about 2006.0405433010.

The spelling of 8072705669 in words is "eight billion, seventy-two million, seven hundred five thousand, six hundred sixty-nine".