8706021 has 8 divisors (see below), whose sum is σ = 11667744. Its totient is φ = 5774160.

The previous prime is 8706013. The next prime is 8706059. The reversal of 8706021 is 1206078.

8706021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8706021 - 2³ = 8706013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8705982 and 8706000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8706001) 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 7 ways as a sum of consecutive naturals, for example, 6775 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (1458468).

Almost surely, 2^8706021 is an apocalyptic number.

It is an amenable number.

8706021 is a deficient number, since it is larger than the sum of its proper divisors (2961723).

8706021 is a wasteful number, since it uses less digits than its factorization.

8706021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14931.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 8706021 is about 2950.5967193095. The cubic root of 8706021 is about 205.7184468542.

The spelling of 8706021 in words is "eight million, seven hundred six thousand, twenty-one".