10066021 has 8 divisors (see below), whose sum is σ = 11739200. Its totient is φ = 8627724.

The previous prime is 10066009. The next prime is 10066051. The reversal of 10066021 is 12066001.

It is not a de Polignac number, because 10066021 - 2¹⁹ = 9541733 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 10065986 and 10066004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10066051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14331 + ... + 15016.

It is an arithmetic number, because the mean of its divisors is an integer number (1467400).

Almost surely, 2^10066021 is an apocalyptic number.

It is an amenable number.

10066021 is a deficient number, since it is larger than the sum of its proper divisors (1673179).

10066021 is an frugal number, since it uses more digits than its factorization.

10066021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29368 (or 29354 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 10066021 is about 3172.6993239196. The cubic root of 10066021 is about 215.9165558457.

The spelling of 10066021 in words is "ten million, sixty-six thousand, twenty-one".