499463857 has 2 divisors, whose sum is σ = 499463858. Its totient is φ = 499463856.

The previous prime is 499463827. The next prime is 499463911. The reversal of 499463857 is 758364994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478340641 + 21123216 = 21871^2 + 4596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499463857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499463798 and 499463807.

It is not a weakly prime, because it can be changed into another prime (499463807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249731928 + 249731929.

It is an arithmetic number, because the mean of its divisors is an integer number (249731929).

Almost surely, 2^499463857 is an apocalyptic number.

It is an amenable number.

499463857 is a deficient number, since it is larger than the sum of its proper divisors (1).

499463857 is an equidigital number, since it uses as much as digits as its factorization.

499463857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The square root of 499463857 is about 22348.6880375560. The cubic root of 499463857 is about 793.4167332035.

The spelling of 499463857 in words is "four hundred ninety-nine million, four hundred sixty-three thousand, eight hundred fifty-seven".