99946479397 has 2 divisors, whose sum is σ = 99946479398. Its totient is φ = 99946479396.

The previous prime is 99946479389. The next prime is 99946479401. The reversal of 99946479397 is 79397464999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57792640801 + 42153838596 = 240401^2 + 205314^2 .

It is a cyclic number.

It is not a de Polignac number, because 99946479397 - 2³ = 99946479389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99946479317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49973239698 + 49973239699.

It is an arithmetic number, because the mean of its divisors is an integer number (49973239699).

Almost surely, 2^99946479397 is an apocalyptic number.

It is an amenable number.

99946479397 is a deficient number, since it is larger than the sum of its proper divisors (1).

99946479397 is an equidigital number, since it uses as much as digits as its factorization.

99946479397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 833299488, while the sum is 76.

The spelling of 99946479397 in words is "ninety-nine billion, nine hundred forty-six million, four hundred seventy-nine thousand, three hundred ninety-seven".