172344383 has 8 divisors (see below), whose sum is σ = 181691520. Its totient is φ = 163024920.

The previous prime is 172344379. The next prime is 172344391. The reversal of 172344383 is 383443271.

172344383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 13128²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172344383 - 2² = 172344379 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 (172344353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6566 + ... + 19692.

It is an arithmetic number, because the mean of its divisors is an integer number (22711440).

Almost surely, 2^172344383 is an apocalyptic number.

172344383 is a deficient number, since it is larger than the sum of its proper divisors (9347137).

172344383 is a wasteful number, since it uses less digits than its factorization.

172344383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13837.

The product of its digits is 48384, while the sum is 35.

The square root of 172344383 is about 13127.9999619135. Note that the first 4 decimals coincide. The cubic root of 172344383 is about 556.5006951785.

The spelling of 172344383 in words is "one hundred seventy-two million, three hundred forty-four thousand, three hundred eighty-three".