9538861 has 2 divisors, whose sum is σ = 9538862. Its totient is φ = 9538860.

The previous prime is 9538829. The next prime is 9538871. The reversal of 9538861 is 1688359.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6405961 + 3132900 = 2531^2 + 1770^2 .

It is a cyclic number.

It is not a de Polignac number, because 9538861 - 2⁵ = 9538829 is a prime.

It is a Chen prime.

It is equal to p₆₃₅₉₉₈ and since 9538861 and 635998 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 (9538801) 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 as a sum of consecutive naturals, namely, 4769430 + 4769431.

It is an arithmetic number, because the mean of its divisors is an integer number (4769431).

Almost surely, 2^9538861 is an apocalyptic number.

It is an amenable number.

9538861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9538861 is an equidigital number, since it uses as much as digits as its factorization.

9538861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 9538861 is about 3088.5046543595. The cubic root of 9538861 is about 212.0795728940.

The spelling of 9538861 in words is "nine million, five hundred thirty-eight thousand, eight hundred sixty-one".