8536021 has 12 divisors (see below), whose sum is σ = 9427428. Its totient is φ = 7722624.

The previous prime is 8536007. The next prime is 8536037. The reversal of 8536021 is 1206358.

It is a happy number.

8536021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 835396 + 7700625 = 914^2 + 2775^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8536021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8536081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8481 + ... + 9433.

It is an arithmetic number, because the mean of its divisors is an integer number (785619).

Almost surely, 2^8536021 is an apocalyptic number.

It is an amenable number.

8536021 is a deficient number, since it is larger than the sum of its proper divisors (891407).

8536021 is a wasteful number, since it uses less digits than its factorization.

8536021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 8536021 is about 2921.6469670376. The cubic root of 8536021 is about 204.3706337229.

The spelling of 8536021 in words is "eight million, five hundred thirty-six thousand, twenty-one".