820714705 has 16 divisors (see below), whose sum is σ = 1010386944. Its totient is φ = 639679680.

The previous prime is 820714669. The next prime is 820714711. The reversal of 820714705 is 507417028.

It is a happy number.

820714705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 820714705 - 2⁷ = 820714577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44575 + ... + 60235.

It is an arithmetic number, because the mean of its divisors is an integer number (63149184).

Almost surely, 2^820714705 is an apocalyptic number.

It is an amenable number.

820714705 is a deficient number, since it is larger than the sum of its proper divisors (189672239).

820714705 is a wasteful number, since it uses less digits than its factorization.

820714705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 820714705 is about 28648.1186991397. The cubic root of 820714705 is about 936.2620170258.

The spelling of 820714705 in words is "eight hundred twenty million, seven hundred fourteen thousand, seven hundred five".