172348417 has 2 divisors, whose sum is σ = 172348418. Its totient is φ = 172348416.

The previous prime is 172348409. The next prime is 172348427. The reversal of 172348417 is 714843271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92621376 + 79727041 = 9624^2 + 8929^2 .

It is a cyclic number.

It is not a de Polignac number, because 172348417 - 2³ = 172348409 is a prime.

It is not a weakly prime, because it can be changed into another prime (172348427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86174208 + 86174209.

It is an arithmetic number, because the mean of its divisors is an integer number (86174209).

Almost surely, 2^172348417 is an apocalyptic number.

It is an amenable number.

172348417 is a deficient number, since it is larger than the sum of its proper divisors (1).

172348417 is an equidigital number, since it uses as much as digits as its factorization.

172348417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 172348417 is about 13128.1536020874. The cubic root of 172348417 is about 556.5050370786.

It can be divided in two parts, 17234 and 8417, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 172348417 in words is "one hundred seventy-two million, three hundred forty-eight thousand, four hundred seventeen".