673820171 has 4 divisors (see below), whose sum is σ = 673872144. Its totient is φ = 673768200.

The previous prime is 673820141. The next prime is 673820207. The reversal of 673820171 is 171028376.

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 is a cyclic number.

It is not a de Polignac number, because 673820171 - 2⁶ = 673820107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673820141) 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 3 ways as a sum of consecutive naturals, for example, 11186 + ... + 38376.

It is an arithmetic number, because the mean of its divisors is an integer number (168468036).

Almost surely, 2^673820171 is an apocalyptic number.

673820171 is a deficient number, since it is larger than the sum of its proper divisors (51973).

673820171 is a wasteful number, since it uses less digits than its factorization.

673820171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51972.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 673820171 is about 25958.0463633148. The cubic root of 673820171 is about 876.6939358543.

The spelling of 673820171 in words is "six hundred seventy-three million, eight hundred twenty thousand, one hundred seventy-one".