820248059 has 4 divisors (see below), whose sum is σ = 820335216. Its totient is φ = 820160904.

The previous prime is 820248047. The next prime is 820248067. The reversal of 820248059 is 950842028.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 820248059 - 2⁴ = 820248043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (820748059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27479 + ... + 48944.

It is an arithmetic number, because the mean of its divisors is an integer number (205083804).

Almost surely, 2^820248059 is an apocalyptic number.

820248059 is a deficient number, since it is larger than the sum of its proper divisors (87157).

820248059 is a wasteful number, since it uses less digits than its factorization.

820248059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87156.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 820248059 is about 28639.9730970544. The cubic root of 820248059 is about 936.0845352309.

The spelling of 820248059 in words is "eight hundred twenty million, two hundred forty-eight thousand, fifty-nine".