499927691 has 2 divisors, whose sum is σ = 499927692. Its totient is φ = 499927690.

The previous prime is 499927667. The next prime is 499927697. The reversal of 499927691 is 196729994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499927691 - 2²² = 495733387 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499927697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249963845 + 249963846.

It is an arithmetic number, because the mean of its divisors is an integer number (249963846).

Almost surely, 2^499927691 is an apocalyptic number.

499927691 is a deficient number, since it is larger than the sum of its proper divisors (1).

499927691 is an equidigital number, since it uses as much as digits as its factorization.

499927691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 56.

The square root of 499927691 is about 22359.0628381424. The cubic root of 499927691 is about 793.6622630120.

The spelling of 499927691 in words is "four hundred ninety-nine million, nine hundred twenty-seven thousand, six hundred ninety-one".