99920603 has 2 divisors, whose sum is σ = 99920604. Its totient is φ = 99920602.

The previous prime is 99920599. The next prime is 99920641. The reversal of 99920603 is 30602999.

It is an a-pointer prime, because the next prime (99920641) can be obtained adding 99920603 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99920603 - 2² = 99920599 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (99920663) 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, 49960301 + 49960302.

It is an arithmetic number, because the mean of its divisors is an integer number (49960302).

Almost surely, 2^99920603 is an apocalyptic number.

99920603 is a deficient number, since it is larger than the sum of its proper divisors (1).

99920603 is an equidigital number, since it uses as much as digits as its factorization.

99920603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 99920603 is about 9996.0293617016. The cubic root of 99920603 is about 464.0360080929.

The spelling of 99920603 in words is "ninety-nine million, nine hundred twenty thousand, six hundred three".