2173704497 has 2 divisors, whose sum is σ = 2173704498. Its totient is φ = 2173704496.

The previous prime is 2173704479. The next prime is 2173704523. The reversal of 2173704497 is 7944073712.

Together with previous prime (2173704479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1709905201 + 463799296 = 41351^2 + 21536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173704497 - 2¹⁴ = 2173688113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2173704437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086852248 + 1086852249.

It is an arithmetic number, because the mean of its divisors is an integer number (1086852249).

Almost surely, 2^2173704497 is an apocalyptic number.

It is an amenable number.

2173704497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173704497 is an equidigital number, since it uses as much as digits as its factorization.

2173704497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 2173704497 is about 46623.0039465498. The cubic root of 2173704497 is about 1295.3888899275.

The spelling of 2173704497 in words is "two billion, one hundred seventy-three million, seven hundred four thousand, four hundred ninety-seven".