499637 has 2 divisors, whose sum is σ = 499638. Its totient is φ = 499636.

The previous prime is 499633. The next prime is 499649. The reversal of 499637 is 736994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306916 + 192721 = 554^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 499637 - 2² = 499633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499637.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 499637.

It is not a weakly prime, because it can be changed into another prime (499633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249818 + 249819.

It is an arithmetic number, because the mean of its divisors is an integer number (249819).

2⁴⁹⁹⁶³⁷ is an apocalyptic number.

It is an amenable number.

499637 is a deficient number, since it is larger than the sum of its proper divisors (1).

499637 is an equidigital number, since it uses as much as digits as its factorization.

499637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 499637 is about 706.8500548207. The cubic root of 499637 is about 79.3508403956.

The spelling of 499637 in words is "four hundred ninety-nine thousand, six hundred thirty-seven".