7830939 has 8 divisors (see below), whose sum is σ = 10723600. Its totient is φ = 5079456.

The previous prime is 7830937. The next prime is 7830961. The reversal of 7830939 is 9390387.

It is a happy number.

7830939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7830939 - 2¹ = 7830937 is a prime.

It is a super-2 number, since 2×7830939² = 122647211243442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7830897 and 7830906.

It is not an unprimeable number, because it can be changed into a prime (7830937) 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 7 ways as a sum of consecutive naturals, for example, 35164 + ... + 35385.

It is an arithmetic number, because the mean of its divisors is an integer number (1340450).

Almost surely, 2^7830939 is an apocalyptic number.

7830939 is a deficient number, since it is larger than the sum of its proper divisors (2892661).

7830939 is a wasteful number, since it uses less digits than its factorization.

7830939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70589.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 7830939 is about 2798.3814965083. The cubic root of 7830939 is about 198.5811159785.

The spelling of 7830939 in words is "seven million, eight hundred thirty thousand, nine hundred thirty-nine".