4591971 has 14 divisors (see below), whose sum is σ = 6885900. Its totient is φ = 3060828.

The previous prime is 4591949. The next prime is 4591991. The reversal of 4591971 is 1791954.

It is not a de Polignac number, because 4591971 - 2⁹ = 4591459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4591991) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2421 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (491850).

Almost surely, 2^4591971 is an apocalyptic number.

4591971 is a deficient number, since it is larger than the sum of its proper divisors (2293929).

4591971 is an frugal number, since it uses more digits than its factorization.

4591971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317 (or 6302 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 4591971 is about 2142.8884711996. Note that the first 3 decimals coincide. The cubic root of 4591971 is about 166.2135322428.

The spelling of 4591971 in words is "four million, five hundred ninety-one thousand, nine hundred seventy-one".