4128771 has 4 divisors (see below), whose sum is σ = 5505032. Its totient is φ = 2752512.

The previous prime is 4128767. The next prime is 4128781. The reversal of 4128771 is 1778214.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4128771 - 2² = 4128767 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (4128781) 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, 688126 + ... + 688131.

It is an arithmetic number, because the mean of its divisors is an integer number (1376258).

Almost surely, 2^4128771 is an apocalyptic number.

4128771 is a deficient number, since it is larger than the sum of its proper divisors (1376261).

4128771 is a wasteful number, since it uses less digits than its factorization.

4128771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376260.

The product of its digits is 3136, while the sum is 30.

The square root of 4128771 is about 2031.9377451093. The cubic root of 4128771 is about 160.4255727744.

The spelling of 4128771 in words is "four million, one hundred twenty-eight thousand, seven hundred seventy-one".