499503691 has 2 divisors, whose sum is σ = 499503692. Its totient is φ = 499503690.

The previous prime is 499503659. The next prime is 499503701. The reversal of 499503691 is 196305994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499503691 - 2⁵ = 499503659 is a prime.

It is not a weakly prime, because it can be changed into another prime (499503601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249751845 + 249751846.

It is an arithmetic number, because the mean of its divisors is an integer number (249751846).

Almost surely, 2^499503691 is an apocalyptic number.

499503691 is a deficient number, since it is larger than the sum of its proper divisors (1).

499503691 is an equidigital number, since it uses as much as digits as its factorization.

499503691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 499503691 is about 22349.5792130411. The cubic root of 499503691 is about 793.4378252349.

The spelling of 499503691 in words is "four hundred ninety-nine million, five hundred three thousand, six hundred ninety-one".