8072820077 has 8 divisors (see below), whose sum is σ = 9242299200. Its totient is φ = 6907395744.

The previous prime is 8072820047. The next prime is 8072820083. The reversal of 8072820077 is 7700282708.

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 8072820077 - 2⁶ = 8072820013 is a prime.

It is a super-2 number, since 2×8072820077² (a number of 21 digits) contains 22 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 (8072820047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009427 + ... + 1017392.

It is an arithmetic number, because the mean of its divisors is an integer number (1155287400).

Almost surely, 2^8072820077 is an apocalyptic number.

It is an amenable number.

8072820077 is a deficient number, since it is larger than the sum of its proper divisors (1169479123).

8072820077 is a wasteful number, since it uses less digits than its factorization.

8072820077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027395.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 8072820077 is about 89848.8735433005. The cubic root of 8072820077 is about 2006.0500199255.

The spelling of 8072820077 in words is "eight billion, seventy-two million, eight hundred twenty thousand, seventy-seven".