172936417 has 2 divisors, whose sum is σ = 172936418. Its totient is φ = 172936416.

The previous prime is 172936399. The next prime is 172936429. The reversal of 172936417 is 714639271.

172936417 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 can be written as a sum of positive squares in only one way, i.e., 163942416 + 8994001 = 12804^2 + 2999^2 .

It is an emirp because it is prime and its reverse (714639271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172936417 - 2¹⁹ = 172412129 is a prime.

It is a Chen prime.

It is equal to p_9658048 and since 172936417 and 9658048 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172936417.

It is not a weakly prime, because it can be changed into another prime (172936487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86468208 + 86468209.

It is an arithmetic number, because the mean of its divisors is an integer number (86468209).

Almost surely, 2^172936417 is an apocalyptic number.

It is an amenable number.

172936417 is a deficient number, since it is larger than the sum of its proper divisors (1).

172936417 is an equidigital number, since it uses as much as digits as its factorization.

172936417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 172936417 is about 13150.5291528516. The cubic root of 172936417 is about 557.1371936151.

The spelling of 172936417 in words is "one hundred seventy-two million, nine hundred thirty-six thousand, four hundred seventeen".