9621386941 has 2 divisors, whose sum is σ = 9621386942. Its totient is φ = 9621386940.

The previous prime is 9621386917. The next prime is 9621386977. The reversal of 9621386941 is 1496831269.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9341995716 + 279391225 = 96654^2 + 16715^2 .

It is a cyclic number.

It is not a de Polignac number, because 9621386941 - 2⁷ = 9621386813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9621380941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4810693470 + 4810693471.

It is an arithmetic number, because the mean of its divisors is an integer number (4810693471).

Almost surely, 2^9621386941 is an apocalyptic number.

It is an amenable number.

9621386941 is a deficient number, since it is larger than the sum of its proper divisors (1).

9621386941 is an equidigital number, since it uses as much as digits as its factorization.

9621386941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 9621386941 is about 98088.6687696392. The cubic root of 9621386941 is about 2126.8942327992.

The spelling of 9621386941 in words is "nine billion, six hundred twenty-one million, three hundred eighty-six thousand, nine hundred forty-one".