4439791971 has 6 divisors (see below), whose sum is σ = 6413032860. Its totient is φ = 2959861308.

The previous prime is 4439791943. The next prime is 4439791987. The reversal of 4439791971 is 1791979344.

4439791971 is a `hidden beast` number, since 443 + 9 + 7 + 9 + 197 + 1 = 666.

It is not a de Polignac number, because 4439791971 - 2⁶ = 4439791907 is a prime.

It is a super-4 number, since 4×4439791971⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (4439791931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246655101 + ... + 246655118.

It is an arithmetic number, because the mean of its divisors is an integer number (1068838810).

Almost surely, 2^4439791971 is an apocalyptic number.

4439791971 is a deficient number, since it is larger than the sum of its proper divisors (1973240889).

4439791971 is a wasteful number, since it uses less digits than its factorization.

4439791971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493310225 (or 493310222 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 4439791971 is about 66631.7639793515. The cubic root of 4439791971 is about 1643.5674832772.

The spelling of 4439791971 in words is "four billion, four hundred thirty-nine million, seven hundred ninety-one thousand, nine hundred seventy-one".