172316983 has 2 divisors, whose sum is σ = 172316984. Its totient is φ = 172316982.

The previous prime is 172316971. The next prime is 172316987. The reversal of 172316983 is 389613271.

172316983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (389613271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172316983 - 2²¹ = 170219831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172316987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86158491 + 86158492.

It is an arithmetic number, because the mean of its divisors is an integer number (86158492).

Almost surely, 2^172316983 is an apocalyptic number.

172316983 is a deficient number, since it is larger than the sum of its proper divisors (1).

172316983 is an equidigital number, since it uses as much as digits as its factorization.

172316983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 172316983 is about 13126.9563494361. The cubic root of 172316983 is about 556.4712020460.

The spelling of 172316983 in words is "one hundred seventy-two million, three hundred sixteen thousand, nine hundred eighty-three".