8572803893 has 4 divisors (see below), whose sum is σ = 8651453580. Its totient is φ = 8494154208.

The previous prime is 8572803851. The next prime is 8572803913. The reversal of 8572803893 is 3983082758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3983082758 = 2 ⋅1991541379.

It can be written as a sum of positive squares in 2 ways, for example, as 5572174609 + 3000629284 = 74647^2 + 54778^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572803893 - 2³² = 4277836597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572803803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39324680 + ... + 39324897.

It is an arithmetic number, because the mean of its divisors is an integer number (2162863395).

Almost surely, 2^8572803893 is an apocalyptic number.

It is an amenable number.

8572803893 is a deficient number, since it is larger than the sum of its proper divisors (78649687).

8572803893 is a wasteful number, since it uses less digits than its factorization.

8572803893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78649686.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 8572803893 is about 92589.4372647334. The cubic root of 8572803893 is about 2046.6376683383.

The spelling of 8572803893 in words is "eight billion, five hundred seventy-two million, eight hundred three thousand, eight hundred ninety-three".