499209653 has 2 divisors, whose sum is σ = 499209654. Its totient is φ = 499209652.

The previous prime is 499209643. The next prime is 499209673. The reversal of 499209653 is 356902994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499209649 + 4 = 22343^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 499209653 - 2⁸ = 499209397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499209598 and 499209607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499209643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249604826 + 249604827.

It is an arithmetic number, because the mean of its divisors is an integer number (249604827).

Almost surely, 2^499209653 is an apocalyptic number.

It is an amenable number.

499209653 is a deficient number, since it is larger than the sum of its proper divisors (1).

499209653 is an equidigital number, since it uses as much as digits as its factorization.

499209653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 499209653 is about 22343.0000895135. Note that the first 4 decimals coincide. The cubic root of 499209653 is about 793.2821062223.

The spelling of 499209653 in words is "four hundred ninety-nine million, two hundred nine thousand, six hundred fifty-three".