499990093 has 2 divisors, whose sum is σ = 499990094. Its totient is φ = 499990092.

The previous prime is 499990081. The next prime is 499990129. The reversal of 499990093 is 390099994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336098889 + 163891204 = 18333^2 + 12802^2 .

It is a cyclic number.

It is not a de Polignac number, because 499990093 - 2⁵ = 499990061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499990093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499990063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249995046 + 249995047.

It is an arithmetic number, because the mean of its divisors is an integer number (249995047).

Almost surely, 2^499990093 is an apocalyptic number.

It is an amenable number.

499990093 is a deficient number, since it is larger than the sum of its proper divisors (1).

499990093 is an equidigital number, since it uses as much as digits as its factorization.

499990093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 499990093 is about 22360.4582466460. The cubic root of 499990093 is about 793.6952838221.

The spelling of 499990093 in words is "four hundred ninety-nine million, nine hundred ninety thousand, ninety-three".