171672673 has 2 divisors, whose sum is σ = 171672674. Its totient is φ = 171672672.

The previous prime is 171672653. The next prime is 171672701. The reversal of 171672673 is 376276171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113806224 + 57866449 = 10668^2 + 7607^2 .

It is a cyclic number.

It is not a de Polignac number, because 171672673 - 2²⁵ = 138118241 is a prime.

It is not a weakly prime, because it can be changed into another prime (171672653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85836336 + 85836337.

It is an arithmetic number, because the mean of its divisors is an integer number (85836337).

Almost surely, 2^171672673 is an apocalyptic number.

It is an amenable number.

171672673 is a deficient number, since it is larger than the sum of its proper divisors (1).

171672673 is an equidigital number, since it uses as much as digits as its factorization.

171672673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 40.

The square root of 171672673 is about 13102.3918808743. The cubic root of 171672673 is about 555.7767691149.

The spelling of 171672673 in words is "one hundred seventy-one million, six hundred seventy-two thousand, six hundred seventy-three".