4120871 has 4 divisors (see below), whose sum is σ = 4263000. Its totient is φ = 3978744.

The previous prime is 4120849. The next prime is 4120873. The reversal of 4120871 is 1780214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1780214 = 2 ⋅890107.

It is a cyclic number.

It is not a de Polignac number, because 4120871 - 2⁶ = 4120807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120873) 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 3 ways as a sum of consecutive naturals, for example, 71021 + ... + 71078.

It is an arithmetic number, because the mean of its divisors is an integer number (1065750).

Almost surely, 2^4120871 is an apocalyptic number.

4120871 is a deficient number, since it is larger than the sum of its proper divisors (142129).

4120871 is a wasteful number, since it uses less digits than its factorization.

4120871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142128.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 4120871 is about 2029.9928571303. The cubic root of 4120871 is about 160.3231878912.

The spelling of 4120871 in words is "four million, one hundred twenty thousand, eight hundred seventy-one".