172338337 has 2 divisors, whose sum is σ = 172338338. Its totient is φ = 172338336.

The previous prime is 172338277. The next prime is 172338391. The reversal of 172338337 is 733833271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162409536 + 9928801 = 12744^2 + 3151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172338337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 172338296 and 172338305.

It is not a weakly prime, because it can be changed into another prime (172308337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86169168 + 86169169.

It is an arithmetic number, because the mean of its divisors is an integer number (86169169).

Almost surely, 2^172338337 is an apocalyptic number.

It is an amenable number.

172338337 is a deficient number, since it is larger than the sum of its proper divisors (1).

172338337 is an equidigital number, since it uses as much as digits as its factorization.

172338337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 37.

The square root of 172338337 is about 13127.7696887171. The cubic root of 172338337 is about 556.4941875831.

The spelling of 172338337 in words is "one hundred seventy-two million, three hundred thirty-eight thousand, three hundred thirty-seven".