171672383 has 4 divisors (see below), whose sum is σ = 175664808. Its totient is φ = 167679960.

The previous prime is 171672349. The next prime is 171672419. The reversal of 171672383 is 383276171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383276171 = 733 ⋅522887.

It is a cyclic number.

It is not a de Polignac number, because 171672383 - 2¹⁰ = 171671359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171672323) 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, 1996148 + ... + 1996233.

It is an arithmetic number, because the mean of its divisors is an integer number (43916202).

Almost surely, 2^171672383 is an apocalyptic number.

171672383 is a deficient number, since it is larger than the sum of its proper divisors (3992425).

171672383 is an equidigital number, since it uses as much as digits as its factorization.

171672383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992424.

The product of its digits is 42336, while the sum is 38.

The square root of 171672383 is about 13102.3808141879. The cubic root of 171672383 is about 555.7764561640.

The spelling of 171672383 in words is "one hundred seventy-one million, six hundred seventy-two thousand, three hundred eighty-three".