7849947 has 12 divisors (see below), whose sum is σ = 12175656. Its totient is φ = 4485600.

The previous prime is 7849943. The next prime is 7849949. The reversal of 7849947 is 7499487.

It is a happy number.

It is not a de Polignac number, because 7849947 - 2² = 7849943 is a prime.

7849947 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7849896 and 7849905.

It is not an unprimeable number, because it can be changed into a prime (7849943) 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, 26554 + ... + 26847.

It is an arithmetic number, because the mean of its divisors is an integer number (1014638).

Almost surely, 2^7849947 is an apocalyptic number.

7849947 is a deficient number, since it is larger than the sum of its proper divisors (4325709).

7849947 is a wasteful number, since it uses less digits than its factorization.

7849947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53418 (or 53411 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 7849947 is about 2801.7756869528. The cubic root of 7849947 is about 198.7416578121.

It can be divided in two parts, 784 and 9947, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 7849947 in words is "seven million, eight hundred forty-nine thousand, nine hundred forty-seven".