99394481 has 2 divisors, whose sum is σ = 99394482. Its totient is φ = 99394480.

The previous prime is 99394441. The next prime is 99394499. The reversal of 99394481 is 18449399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 25090081 = 8620^2 + 5009^2 .

It is a cyclic number.

It is not a de Polignac number, because 99394481 - 2⁶ = 99394417 is a prime.

It is a super-2 number, since 2×99394481² = 19758525706518722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99394441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49697240 + 49697241.

It is an arithmetic number, because the mean of its divisors is an integer number (49697241).

Almost surely, 2^99394481 is an apocalyptic number.

It is an amenable number.

99394481 is a deficient number, since it is larger than the sum of its proper divisors (1).

99394481 is an equidigital number, since it uses as much as digits as its factorization.

99394481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 99394481 is about 9969.6780790555. The cubic root of 99394481 is about 463.2201292828.

The spelling of 99394481 in words is "ninety-nine million, three hundred ninety-four thousand, four hundred eighty-one".