499897 has 2 divisors, whose sum is σ = 499898. Its totient is φ = 499896.

The previous prime is 499883. The next prime is 499903. The reversal of 499897 is 798994.

499897 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 32041 = 684^2 + 179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499897 is a prime.

499897 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (499397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249948 + 249949.

It is an arithmetic number, because the mean of its divisors is an integer number (249949).

2⁴⁹⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

499897 is a deficient number, since it is larger than the sum of its proper divisors (1).

499897 is an equidigital number, since it uses as much as digits as its factorization.

499897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 499897 is about 707.0339454369. The cubic root of 499897 is about 79.3646021472.

The spelling of 499897 in words is "four hundred ninety-nine thousand, eight hundred ninety-seven".