10021966 has 8 divisors (see below), whose sum is σ = 15049224. Its totient is φ = 5005560.

The previous prime is 10021933. The next prime is 10021969. The reversal of 10021966 is 66912001.

10021966 is digitally balanced in base 2, 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 a self number, because there is not a number n which added to its sum of digits gives 10021966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241 + ... + 4483.

It is an arithmetic number, because the mean of its divisors is an integer number (1881153).

Almost surely, 2^10021966 is an apocalyptic number.

10021966 is a deficient number, since it is larger than the sum of its proper divisors (5027258).

10021966 is a wasteful number, since it uses less digits than its factorization.

10021966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 10021966 is about 3165.7488845453. The cubic root of 10021966 is about 215.6011013491.

Adding to 10021966 its reverse (66912001), we get a palindrome (76933967).

The spelling of 10021966 in words is "ten million, twenty-one thousand, nine hundred sixty-six".