847379 has 4 divisors (see below), whose sum is σ = 912576. Its totient is φ = 782184.

The previous prime is 847373. The next prime is 847393. The reversal of 847379 is 973748.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-847379 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 847379.

It is not an unprimeable number, because it can be changed into a prime (847373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32579 + ... + 32604.

It is an arithmetic number, because the mean of its divisors is an integer number (228144).

2⁸⁴⁷³⁷⁹ is an apocalyptic number.

847379 is a deficient number, since it is larger than the sum of its proper divisors (65197).

847379 is a wasteful number, since it uses less digits than its factorization.

847379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65196.

The product of its digits is 42336, while the sum is 38.

The square root of 847379 is about 920.5319114512. The cubic root of 847379 is about 94.6293591559.

The spelling of 847379 in words is "eight hundred forty-seven thousand, three hundred seventy-nine".