4321971 has 8 divisors (see below), whose sum is σ = 6402960. Its totient is φ = 2881296.

The previous prime is 4321931. The next prime is 4321981. The reversal of 4321971 is 1791234.

It is not a de Polignac number, because 4321971 - 2¹⁸ = 4059827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 160073 = 4321971 / (4 + 3 + 2 + 1 + 9 + 7 + 1).

4321971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4321901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80010 + ... + 80063.

It is an arithmetic number, because the mean of its divisors is an integer number (800370).

Almost surely, 2^4321971 is an apocalyptic number.

4321971 is a deficient number, since it is larger than the sum of its proper divisors (2080989).

4321971 is a wasteful number, since it uses less digits than its factorization.

4321971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160082 (or 160076 counting only the distinct ones).

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

The square root of 4321971 is about 2078.9350639209. The cubic root of 4321971 is about 162.8898222904.

The spelling of 4321971 in words is "four million, three hundred twenty-one thousand, nine hundred seventy-one".