499974089 has 2 divisors, whose sum is σ = 499974090. Its totient is φ = 499974088.

The previous prime is 499974071. The next prime is 499974121. The reversal of 499974089 is 980479994.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499969600 + 4489 = 22360^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 499974089 - 2²⁰ = 498925513 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (499970089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249987044 + 249987045.

It is an arithmetic number, because the mean of its divisors is an integer number (249987045).

Almost surely, 2^499974089 is an apocalyptic number.

It is an amenable number.

499974089 is a deficient number, since it is larger than the sum of its proper divisors (1).

499974089 is an equidigital number, since it uses as much as digits as its factorization.

499974089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The square root of 499974089 is about 22360.1003799178. The cubic root of 499974089 is about 793.6868153644.

The spelling of 499974089 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, eighty-nine".