4213971 has 16 divisors (see below), whose sum is σ = 6311200. Its totient is φ = 2778624.

The previous prime is 4213969. The next prime is 4213999. The reversal of 4213971 is 1793124.

It is not a de Polignac number, because 4213971 - 2¹ = 4213969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 1 + 3⁶ + 9² + 7⁵ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4213901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1815 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (394450).

Almost surely, 2^4213971 is an apocalyptic number.

4213971 is a deficient number, since it is larger than the sum of its proper divisors (2097229).

4213971 is a wasteful number, since it uses less digits than its factorization.

4213971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1709 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 4213971 is about 2052.7958982812. The cubic root of 4213971 is about 161.5215651087.

It can be divided in two parts, 4213 and 971, that added together give a square (5184 = 72²).

The spelling of 4213971 in words is "four million, two hundred thirteen thousand, nine hundred seventy-one".