820341347 has 16 divisors (see below), whose sum is σ = 946182912. Its totient is φ = 696690720.

The previous prime is 820341343. The next prime is 820341349. The reversal of 820341347 is 743143028.

820341347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 820341347 - 2² = 820341343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (820341343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452072 + ... + 453882.

It is an arithmetic number, because the mean of its divisors is an integer number (59136432).

Almost surely, 2^820341347 is an apocalyptic number.

820341347 is a deficient number, since it is larger than the sum of its proper divisors (125841565).

820341347 is a wasteful number, since it uses less digits than its factorization.

820341347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 820341347 is about 28641.6016835651. The cubic root of 820341347 is about 936.1200213024.

The spelling of 820341347 in words is "eight hundred twenty million, three hundred forty-one thousand, three hundred forty-seven".