820541063 has 8 divisors (see below), whose sum is σ = 827030400. Its totient is φ = 814065120.

The previous prime is 820541053. The next prime is 820541083. The reversal of 820541063 is 360145028.

820541063 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 cyclic number.

It is not a de Polignac number, because 820541063 - 2⁶ = 820540999 is a prime.

It is a super-4 number, since 4×820541063⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820541053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144881 + ... + 150437.

It is an arithmetic number, because the mean of its divisors is an integer number (103378800).

Almost surely, 2^820541063 is an apocalyptic number.

820541063 is a deficient number, since it is larger than the sum of its proper divisors (6489337).

820541063 is a wasteful number, since it uses less digits than its factorization.

820541063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 820541063 is about 28645.0879384232. The cubic root of 820541063 is about 936.1959827611.

The spelling of 820541063 in words is "eight hundred twenty million, five hundred forty-one thousand, sixty-three".