4097664169 has 3 divisors (see below), whose sum is σ = 4097728183. Its totient is φ = 4097600156.

The previous prime is 4097664163. The next prime is 4097664209. The reversal of 4097664169 is 9614667904.

The square root of 4097664169 is 64013.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 4096640025 + 1024144 = 64005^2 + 1012^2 .

It is not a de Polignac number, because 4097664169 - 2²¹ = 4095567017 is a prime.

It is a super-2 number, since 2×4097664169² = 33581703283812921122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4097664163) 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 2 ways as a sum of consecutive naturals, for example, 32007 + ... + 96019.

Almost surely, 2^4097664169 is an apocalyptic number.

4097664169 is the 64013-rd square number.

4097664169 is the 32007-th centered octagonal number.

It is an amenable number.

4097664169 is a deficient number, since it is larger than the sum of its proper divisors (64014).

4097664169 is an frugal number, since it uses more digits than its factorization.

4097664169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128026 (or 64013 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The cubic root of 4097664169 is about 1600.2166593323.

The spelling of 4097664169 in words is "four billion, ninety-seven million, six hundred sixty-four thousand, one hundred sixty-nine".