9662021 has 2 divisors, whose sum is σ = 9662022. Its totient is φ = 9662020.

The previous prime is 9661991. The next prime is 9662041. The reversal of 9662021 is 1202669.

9662021 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., 8473921 + 1188100 = 2911^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 9662021 - 2⁶ = 9661957 is a prime.

It is a Chen prime.

It is equal to p₆₄₃₇₀₆ and since 9662021 and 643706 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9662041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4831010 + 4831011.

It is an arithmetic number, because the mean of its divisors is an integer number (4831011).

Almost surely, 2^9662021 is an apocalyptic number.

It is an amenable number.

9662021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9662021 is an equidigital number, since it uses as much as digits as its factorization.

9662021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9662021 is about 3108.3791596264. The cubic root of 9662021 is about 212.9884202452.

The spelling of 9662021 in words is "nine million, six hundred sixty-two thousand, twenty-one".