9626621 has 2 divisors, whose sum is σ = 9626622. Its totient is φ = 9626620.

The previous prime is 9626567. The next prime is 9626629. The reversal of 9626621 is 1266269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 835396 = 2965^2 + 914^2 .

It is an emirp because it is prime and its reverse (1266269) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9626621 - 2⁶ = 9626557 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9626629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4813310 + 4813311.

It is an arithmetic number, because the mean of its divisors is an integer number (4813311).

Almost surely, 2^9626621 is an apocalyptic number.

It is an amenable number.

9626621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9626621 is an equidigital number, since it uses as much as digits as its factorization.

9626621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 9626621 is about 3102.6796483040. The cubic root of 9626621 is about 212.7279841510.

The spelling of 9626621 in words is "nine million, six hundred twenty-six thousand, six hundred twenty-one".