2172717704 has 8 divisors (see below), whose sum is σ = 4073845710. Its totient is φ = 1086358848.

The previous prime is 2172717667. The next prime is 2172717707. The reversal of 2172717704 is 4077172712.

It can be written as a sum of positive squares in only one way, i.e., 1800304900 + 372412804 = 42430^2 + 19298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2172717707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135794849 + ... + 135794864.

Almost surely, 2^2172717704 is an apocalyptic number.

It is an amenable number.

2172717704 is a deficient number, since it is larger than the sum of its proper divisors (1901128006).

2172717704 is a wasteful number, since it uses less digits than its factorization.

2172717704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271589719 (or 271589715 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 38.

The square root of 2172717704 is about 46612.4200616102. The cubic root of 2172717704 is about 1295.1928384138.

The spelling of 2172717704 in words is "two billion, one hundred seventy-two million, seven hundred seventeen thousand, seven hundred four".