8208825861 has 16 divisors (see below), whose sum is σ = 11302406720. Its totient is φ = 5296233600.

The previous prime is 8208825857. The next prime is 8208825913. The reversal of 8208825861 is 1685288028.

It is a happy number.

It is not a de Polignac number, because 8208825861 - 2² = 8208825857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8208825861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8208825841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277840 + ... + 305961.

It is an arithmetic number, because the mean of its divisors is an integer number (706400420).

Almost surely, 2^8208825861 is an apocalyptic number.

It is an amenable number.

8208825861 is a deficient number, since it is larger than the sum of its proper divisors (3093580859).

8208825861 is a wasteful number, since it uses less digits than its factorization.

8208825861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583956.

The product of its (nonzero) digits is 491520, while the sum is 48.

The square root of 8208825861 is about 90602.5709403436. The cubic root of 8208825861 is about 2017.2528959131.

The spelling of 8208825861 in words is "eight billion, two hundred eight million, eight hundred twenty-five thousand, eight hundred sixty-one".