8821973 has 2 divisors, whose sum is σ = 8821974. Its totient is φ = 8821972.

The previous prime is 8821961. The next prime is 8821979. The reversal of 8821973 is 3791288.

8821973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8334769 + 487204 = 2887^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 8821973 - 2¹⁶ = 8756437 is a prime.

It is a super-2 number, since 2×8821973² = 155654415225458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8821979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4410986 + 4410987.

It is an arithmetic number, because the mean of its divisors is an integer number (4410987).

Almost surely, 2^8821973 is an apocalyptic number.

It is an amenable number.

8821973 is a deficient number, since it is larger than the sum of its proper divisors (1).

8821973 is an equidigital number, since it uses as much as digits as its factorization.

8821973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 8821973 is about 2970.1806342376. The cubic root of 8821973 is about 206.6277158065.

The spelling of 8821973 in words is "eight million, eight hundred twenty-one thousand, nine hundred seventy-three".