4431071 has 4 divisors (see below), whose sum is σ = 4435992. Its totient is φ = 4426152.

The previous prime is 4431059. The next prime is 4431079. The reversal of 4431071 is 1701344.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4431071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431079) 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, 680 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (1108998).

Almost surely, 2^4431071 is an apocalyptic number.

4431071 is a deficient number, since it is larger than the sum of its proper divisors (4921).

4431071 is a wasteful number, since it uses less digits than its factorization.

4431071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 4431071 is about 2105.0109263374. The cubic root of 4431071 is about 164.2490638560.

The spelling of 4431071 in words is "four million, four hundred thirty-one thousand, seventy-one".