2173604069 has 16 divisors (see below), whose sum is σ = 2676952320. Its totient is φ = 1718651520.

The previous prime is 2173604039. The next prime is 2173604077. The reversal of 2173604069 is 9604063712.

It is a cyclic number.

It is not a de Polignac number, because 2173604069 - 2²⁰ = 2172555493 is a prime.

It is a super-2 number, since 2×2173604069² = 9449109297546713522, which 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 (2173604039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149672 + ... + 163550.

It is an arithmetic number, because the mean of its divisors is an integer number (167309520).

Almost surely, 2^2173604069 is an apocalyptic number.

It is an amenable number.

2173604069 is a deficient number, since it is larger than the sum of its proper divisors (503348251).

2173604069 is a wasteful number, since it uses less digits than its factorization.

2173604069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15620.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2173604069 is about 46621.9269121301. The cubic root of 2173604069 is about 1295.3689400647.

The spelling of 2173604069 in words is "two billion, one hundred seventy-three million, six hundred four thousand, sixty-nine".