2173606457 has 4 divisors (see below), whose sum is σ = 2371207056. Its totient is φ = 1976005860.

The previous prime is 2173606423. The next prime is 2173606459. The reversal of 2173606457 is 7546063712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2173606457 - 2¹⁰ = 2173605433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173606459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98800283 + ... + 98800304.

It is an arithmetic number, because the mean of its divisors is an integer number (592801764).

Almost surely, 2^2173606457 is an apocalyptic number.

It is an amenable number.

2173606457 is a deficient number, since it is larger than the sum of its proper divisors (197600599).

2173606457 is a wasteful number, since it uses less digits than its factorization.

2173606457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197600598.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 2173606457 is about 46621.9525223901. The cubic root of 2173606457 is about 1295.3694144443.

The spelling of 2173606457 in words is "two billion, one hundred seventy-three million, six hundred six thousand, four hundred fifty-seven".