9866414923 has 2 divisors, whose sum is σ = 9866414924. Its totient is φ = 9866414922.

The previous prime is 9866414897. The next prime is 9866414963. The reversal of 9866414923 is 3294146689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9866414923 - 2¹³ = 9866406731 is a prime.

It is a super-2 number, since 2×9866414923² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9866414963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4933207461 + 4933207462.

It is an arithmetic number, because the mean of its divisors is an integer number (4933207462).

Almost surely, 2^9866414923 is an apocalyptic number.

9866414923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9866414923 is an equidigital number, since it uses as much as digits as its factorization.

9866414923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The square root of 9866414923 is about 99329.8289689457. The cubic root of 9866414923 is about 2144.7983084375.

The spelling of 9866414923 in words is "nine billion, eight hundred sixty-six million, four hundred fourteen thousand, nine hundred twenty-three".