499698677 has 2 divisors, whose sum is σ = 499698678. Its totient is φ = 499698676.

The previous prime is 499698643. The next prime is 499698691. The reversal of 499698677 is 776896994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356680996 + 143017681 = 18886^2 + 11959^2 .

It is a cyclic number.

It is not a de Polignac number, because 499698677 - 2¹⁸ = 499436533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499698607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249849338 + 249849339.

It is an arithmetic number, because the mean of its divisors is an integer number (249849339).

Almost surely, 2^499698677 is an apocalyptic number.

It is an amenable number.

499698677 is a deficient number, since it is larger than the sum of its proper divisors (1).

499698677 is an equidigital number, since it uses as much as digits as its factorization.

499698677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 65.

The square root of 499698677 is about 22353.9409724549. The cubic root of 499698677 is about 793.5410537957.

The spelling of 499698677 in words is "four hundred ninety-nine million, six hundred ninety-eight thousand, six hundred seventy-seven".