499691977 has 2 divisors, whose sum is σ = 499691978. Its totient is φ = 499691976.

The previous prime is 499691971. The next prime is 499692031. The reversal of 499691977 is 779196994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375235641 + 124456336 = 19371^2 + 11156^2 .

It is a cyclic number.

It is not a de Polignac number, because 499691977 - 2¹¹ = 499689929 is a prime.

It is not a weakly prime, because it can be changed into another prime (499691971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249845988 + 249845989.

It is an arithmetic number, because the mean of its divisors is an integer number (249845989).

Almost surely, 2^499691977 is an apocalyptic number.

It is an amenable number.

499691977 is a deficient number, since it is larger than the sum of its proper divisors (1).

499691977 is an equidigital number, since it uses as much as digits as its factorization.

499691977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7715736, while the sum is 61.

The square root of 499691977 is about 22353.7911102345. The cubic root of 499691977 is about 793.5375071591.

The spelling of 499691977 in words is "four hundred ninety-nine million, six hundred ninety-one thousand, nine hundred seventy-seven".