820576063 has 2 divisors, whose sum is σ = 820576064. Its totient is φ = 820576062.

The previous prime is 820576049. The next prime is 820576069. The reversal of 820576063 is 360675028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 820576063 - 2¹⁷ = 820444991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (820576069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410288031 + 410288032.

It is an arithmetic number, because the mean of its divisors is an integer number (410288032).

Almost surely, 2^820576063 is an apocalyptic number.

820576063 is a deficient number, since it is larger than the sum of its proper divisors (1).

820576063 is an equidigital number, since it uses as much as digits as its factorization.

820576063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 820576063 is about 28645.6988568965. The cubic root of 820576063 is about 936.2092936503.

The spelling of 820576063 in words is "eight hundred twenty million, five hundred seventy-six thousand, sixty-three".