4172881 has 2 divisors, whose sum is σ = 4172882. Its totient is φ = 4172880.

The previous prime is 4172873. The next prime is 4172887. The reversal of 4172881 is 1882714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2430481 + 1742400 = 1559^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172881 - 2³ = 4172873 is a prime.

It is a super-2 number, since 2×4172881² = 34825871680322, which contains 22 as substring.

It is equal to p₂₉₄₅₂₉ and since 4172881 and 294529 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4172887) 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 as a sum of consecutive naturals, namely, 2086440 + 2086441.

It is an arithmetic number, because the mean of its divisors is an integer number (2086441).

Almost surely, 2^4172881 is an apocalyptic number.

It is an amenable number.

4172881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172881 is an equidigital number, since it uses as much as digits as its factorization.

4172881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 31.

The square root of 4172881 is about 2042.7630797525. The cubic root of 4172881 is about 160.9948560012.

The spelling of 4172881 in words is "four million, one hundred seventy-two thousand, eight hundred eighty-one".