4027121 has 4 divisors (see below), whose sum is σ = 4602432. Its totient is φ = 3451812.

The previous prime is 4027103. The next prime is 4027123. The reversal of 4027121 is 1217204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4027121 - 2⁶ = 4027057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4027121.

It is not an unprimeable number, because it can be changed into a prime (4027123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287645 + ... + 287658.

It is an arithmetic number, because the mean of its divisors is an integer number (1150608).

Almost surely, 2^4027121 is an apocalyptic number.

It is an amenable number.

4027121 is a deficient number, since it is larger than the sum of its proper divisors (575311).

4027121 is an equidigital number, since it uses as much as digits as its factorization.

4027121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575310.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 4027121 is about 2006.7687958507. The cubic root of 4027121 is about 159.0980632627.

The spelling of 4027121 in words is "four million, twenty-seven thousand, one hundred twenty-one".