17172401 has 2 divisors, whose sum is σ = 17172402. Its totient is φ = 17172400.

The previous prime is 17172377. The next prime is 17172413. The reversal of 17172401 is 10427171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13653025 + 3519376 = 3695^2 + 1876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17172401 is a prime.

It is a super-2 number, since 2×17172401² = 589782712209602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17112401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8586200 + 8586201.

It is an arithmetic number, because the mean of its divisors is an integer number (8586201).

Almost surely, 2^17172401 is an apocalyptic number.

It is an amenable number.

17172401 is a deficient number, since it is larger than the sum of its proper divisors (1).

17172401 is an equidigital number, since it uses as much as digits as its factorization.

17172401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 17172401 is about 4143.9595799187. The cubic root of 17172401 is about 257.9944363121.

Adding to 17172401 its reverse (10427171), we get a palindrome (27599572).

The spelling of 17172401 in words is "seventeen million, one hundred seventy-two thousand, four hundred one".