7849971 has 12 divisors (see below), whose sum is σ = 12006072. Its totient is φ = 4925376.

The previous prime is 7849967. The next prime is 7849991. The reversal of 7849971 is 1799487.

7849971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7849971 - 2² = 7849967 is a prime.

7849971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7849931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25501 + ... + 25806.

It is an arithmetic number, because the mean of its divisors is an integer number (1000506).

Almost surely, 2^7849971 is an apocalyptic number.

7849971 is a deficient number, since it is larger than the sum of its proper divisors (4156101).

7849971 is a wasteful number, since it uses less digits than its factorization.

7849971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51330 (or 51327 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 7849971 is about 2801.7799699477. The cubic root of 7849971 is about 198.7418603525.

The spelling of 7849971 in words is "seven million, eight hundred forty-nine thousand, nine hundred seventy-one".