99740203 has 2 divisors, whose sum is σ = 99740204. Its totient is φ = 99740202.

The previous prime is 99740191. The next prime is 99740219. The reversal of 99740203 is 30204799.

It is a weak prime.

It is an emirp because it is prime and its reverse (30204799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99740203 - 2⁵ = 99740171 is a prime.

It is not a weakly prime, because it can be changed into another prime (99740243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49870101 + 49870102.

It is an arithmetic number, because the mean of its divisors is an integer number (49870102).

Almost surely, 2^99740203 is an apocalyptic number.

99740203 is a deficient number, since it is larger than the sum of its proper divisors (1).

99740203 is an equidigital number, since it uses as much as digits as its factorization.

99740203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 99740203 is about 9987.0017022127. The cubic root of 99740203 is about 463.7565778159.

Subtracting from 99740203 its sum of digits (34), we obtain a square (99740169 = 9987²).

The spelling of 99740203 in words is "ninety-nine million, seven hundred forty thousand, two hundred three".