820572814 has 8 divisors (see below), whose sum is σ = 1231005600. Its totient is φ = 410237616.

The previous prime is 820572799. The next prime is 820572853. The reversal of 820572814 is 418275028.

820572814 is digitally balanced in base 2, 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602 + ... + 40594.

It is an arithmetic number, because the mean of its divisors is an integer number (153875700).

Almost surely, 2^820572814 is an apocalyptic number.

820572814 is a deficient number, since it is larger than the sum of its proper divisors (410432786).

820572814 is a wasteful number, since it uses less digits than its factorization.

820572814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48794.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 820572814 is about 28645.6421467559. The cubic root of 820572814 is about 936.2080580355.

The spelling of 820572814 in words is "eight hundred twenty million, five hundred seventy-two thousand, eight hundred fourteen".