8020797530 has 8 divisors (see below), whose sum is σ = 14437435572. Its totient is φ = 3208319008.

The previous prime is 8020797497. The next prime is 8020797637. The reversal of 8020797530 is 357970208.

It can be written as a sum of positive squares in 2 ways, for example, as 7707259681 + 313537849 = 87791^2 + 17707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401039867 + ... + 401039886.

Almost surely, 2^8020797530 is an apocalyptic number.

8020797530 is a deficient number, since it is larger than the sum of its proper divisors (6416638042).

8020797530 is a wasteful number, since it uses less digits than its factorization.

8020797530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802079760.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 8020797530 is about 89558.9053640117. The cubic root of 8020797530 is about 2001.7316277999.

The spelling of 8020797530 in words is "eight billion, twenty million, seven hundred ninety-seven thousand, five hundred thirty".