8020904193 has 24 divisors (see below), whose sum is σ = 11807950440. Its totient is φ = 5245689600.

The previous prime is 8020904173. The next prime is 8020904197. The reversal of 8020904193 is 3914090208.

It can be written as a sum of positive squares in 4 ways, for example, as 2804020209 + 5216883984 = 52953^2 + 72228^2 .

It is not a de Polignac number, because 8020904193 - 2⁵ = 8020904161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8020904197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58605 + ... + 139557.

It is an arithmetic number, because the mean of its divisors is an integer number (491997935).

Almost surely, 2^8020904193 is an apocalyptic number.

It is an amenable number.

8020904193 is a deficient number, since it is larger than the sum of its proper divisors (3787046247).

8020904193 is a wasteful number, since it uses less digits than its factorization.

8020904193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81169 (or 81166 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8020904193 is about 89559.5008527850. The cubic root of 8020904193 is about 2001.7405009721.

The spelling of 8020904193 in words is "eight billion, twenty million, nine hundred four thousand, one hundred ninety-three".