4172257 has 2 divisors, whose sum is σ = 4172258. Its totient is φ = 4172256.

The previous prime is 4172243. The next prime is 4172279. The reversal of 4172257 is 7522714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3154176 + 1018081 = 1776^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172257 - 2¹¹ = 4170209 is a prime.

It is not a weakly prime, because it can be changed into another prime (4172057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086128 + 2086129.

It is an arithmetic number, because the mean of its divisors is an integer number (2086129).

Almost surely, 2^4172257 is an apocalyptic number.

It is an amenable number.

4172257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172257 is an equidigital number, since it uses as much as digits as its factorization.

4172257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920, while the sum is 28.

The square root of 4172257 is about 2042.6103397369. The cubic root of 4172257 is about 160.9868307066.

The spelling of 4172257 in words is "four million, one hundred seventy-two thousand, two hundred fifty-seven".