499984997 has 2 divisors, whose sum is σ = 499984998. Its totient is φ = 499984996.

The previous prime is 499984993. The next prime is 499985023. The reversal of 499984997 is 799489994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483736036 + 16248961 = 21994^2 + 4031^2 .

It is a cyclic number.

It is not a de Polignac number, because 499984997 - 2² = 499984993 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 (499984993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249992498 + 249992499.

It is an arithmetic number, because the mean of its divisors is an integer number (249992499).

Almost surely, 2^499984997 is an apocalyptic number.

It is an amenable number.

499984997 is a deficient number, since it is larger than the sum of its proper divisors (1).

499984997 is an equidigital number, since it uses as much as digits as its factorization.

499984997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52907904, while the sum is 68.

The square root of 499984997 is about 22360.3442952026. The cubic root of 499984997 is about 793.6925873120.

The spelling of 499984997 in words is "four hundred ninety-nine million, nine hundred eighty-four thousand, nine hundred ninety-seven".