9664933469 has 2 divisors, whose sum is σ = 9664933470. Its totient is φ = 9664933468.

The previous prime is 9664933417. The next prime is 9664933543. The reversal of 9664933469 is 9643394669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9464371225 + 200562244 = 97285^2 + 14162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9664933469 is a prime.

It is a super-2 number, since 2×9664933469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9664933409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832466734 + 4832466735.

It is an arithmetic number, because the mean of its divisors is an integer number (4832466735).

Almost surely, 2^9664933469 is an apocalyptic number.

It is an amenable number.

9664933469 is a deficient number, since it is larger than the sum of its proper divisors (1).

9664933469 is an equidigital number, since it uses as much as digits as its factorization.

9664933469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22674816, while the sum is 59.

The square root of 9664933469 is about 98310.3934942791. The cubic root of 9664933469 is about 2130.0981879987.

The spelling of 9664933469 in words is "nine billion, six hundred sixty-four million, nine hundred thirty-three thousand, four hundred sixty-nine".