7849842 has 64 divisors (see below), whose sum is σ = 21095424. Its totient is φ = 1880640.

The previous prime is 7849837. The next prime is 7849847. The reversal of 7849842 is 2489487.

It is an interprime number because it is at equal distance from previous prime (7849837) and next prime (7849847).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7849794 and 7849803.

It is not an unprimeable number, because it can be changed into a prime (7849847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5353 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (329616).

Almost surely, 2^7849842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7849842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10547712).

7849842 is an abundant number, since it is smaller than the sum of its proper divisors (13245582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7849842 is a wasteful number, since it uses less digits than its factorization.

7849842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its digits is 129024, while the sum is 42.

The square root of 7849842 is about 2801.7569487734. The cubic root of 7849842 is about 198.7407716929.

The spelling of 7849842 in words is "seven million, eight hundred forty-nine thousand, eight hundred forty-two".