9672072869 has 2 divisors, whose sum is σ = 9672072870. Its totient is φ = 9672072868.

The previous prime is 9672072859. The next prime is 9672072889. The reversal of 9672072869 is 9682702769.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6763088644 + 2908984225 = 82238^2 + 53935^2 .

It is a cyclic number.

It is not a de Polignac number, because 9672072869 - 2⁴ = 9672072853 is a prime.

It is a super-2 number, since 2×9672072869² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9672072859) 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 as a sum of consecutive naturals, namely, 4836036434 + 4836036435.

It is an arithmetic number, because the mean of its divisors is an integer number (4836036435).

Almost surely, 2^9672072869 is an apocalyptic number.

It is an amenable number.

9672072869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9672072869 is an equidigital number, since it uses as much as digits as its factorization.

9672072869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The square root of 9672072869 is about 98346.6972958421. The cubic root of 9672072869 is about 2130.6225537383.

The spelling of 9672072869 in words is "nine billion, six hundred seventy-two million, seventy-two thousand, eight hundred sixty-nine".