99994481 has 2 divisors, whose sum is σ = 99994482. Its totient is φ = 99994480.

The previous prime is 99994471. The next prime is 99994553. The reversal of 99994481 is 18449999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79210000 + 20784481 = 8900^2 + 4559^2 .

It is a cyclic number.

It is not a de Polignac number, because 99994481 - 2¹⁴ = 99978097 is a prime.

It is a super-2 number, since 2×99994481² = 19997792460918722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99994471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997240 + 49997241.

It is an arithmetic number, because the mean of its divisors is an integer number (49997241).

Almost surely, 2^99994481 is an apocalyptic number.

It is an amenable number.

99994481 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994481 is an equidigital number, since it uses as much as digits as its factorization.

99994481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 53.

The square root of 99994481 is about 9999.7240461925. The cubic root of 99994481 is about 464.1503442279.

The spelling of 99994481 in words is "ninety-nine million, nine hundred ninety-four thousand, four hundred eighty-one".