947879 has 8 divisors (see below), whose sum is σ = 989520. Its totient is φ = 907200.

The previous prime is 947873. The next prime is 947893. The reversal of 947879 is 978749.

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

It is a cyclic number.

It is not a de Polignac number, because 947879 - 2¹² = 943783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 947879.

It is not an unprimeable number, because it can be changed into a prime (947873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2312 + ... + 2690.

It is an arithmetic number, because the mean of its divisors is an integer number (123690).

2⁹⁴⁷⁸⁷⁹ is an apocalyptic number.

947879 is a deficient number, since it is larger than the sum of its proper divisors (41641).

947879 is a wasteful number, since it uses less digits than its factorization.

947879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its digits is 127008, while the sum is 44.

The square root of 947879 is about 973.5907764559. The cubic root of 947879 is about 98.2315433004.

The spelling of 947879 in words is "nine hundred forty-seven thousand, eight hundred seventy-nine".