8526986821 has 8 divisors (see below), whose sum is σ = 8817064704. Its totient is φ = 8237847360.

The previous prime is 8526986749. The next prime is 8526986851. The reversal of 8526986821 is 1286896258.

It is a happy number.

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 8526986821 - 2²⁷ = 8392769093 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 (8526986851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216100 + ... + 252493.

It is an arithmetic number, because the mean of its divisors is an integer number (1102133088).

Almost surely, 2^8526986821 is an apocalyptic number.

It is an amenable number.

8526986821 is a deficient number, since it is larger than the sum of its proper divisors (290077883).

8526986821 is a wasteful number, since it uses less digits than its factorization.

8526986821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469211.

The product of its digits is 3317760, while the sum is 55.

The square root of 8526986821 is about 92341.6851752230. The cubic root of 8526986821 is about 2042.9850907110.

The spelling of 8526986821 in words is "eight billion, five hundred twenty-six million, nine hundred eighty-six thousand, eight hundred twenty-one".