4172355 has 24 divisors (see below), whose sum is σ = 7890480. Its totient is φ = 2022720.

The previous prime is 4172353. The next prime is 4172359. The reversal of 4172355 is 5532714.

It is a happy number.

It is not a de Polignac number, because 4172355 - 2¹ = 4172353 is a prime.

4172355 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4172353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3720 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (328770).

Almost surely, 2^4172355 is an apocalyptic number.

4172355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4172355 is a deficient number, since it is larger than the sum of its proper divisors (3718125).

4172355 is a wasteful number, since it uses less digits than its factorization.

4172355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8451 (or 8448 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 4172355 is about 2042.6343285082. The cubic root of 4172355 is about 160.9880911423.

It can be divided in two parts, 417 and 2355, that added together give a palindrome (2772).

The spelling of 4172355 in words is "four million, one hundred seventy-two thousand, three hundred fifty-five".