499270649 has 2 divisors, whose sum is σ = 499270650. Its totient is φ = 499270648.

The previous prime is 499270621. The next prime is 499270661. The reversal of 499270649 is 946072994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409779049 + 89491600 = 20243^2 + 9460^2 .

It is a cyclic number.

It is not a de Polignac number, because 499270649 - 2²⁴ = 482493433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499270597 and 499270606.

It is not a weakly prime, because it can be changed into another prime (499270669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249635324 + 249635325.

It is an arithmetic number, because the mean of its divisors is an integer number (249635325).

Almost surely, 2^499270649 is an apocalyptic number.

It is an amenable number.

499270649 is a deficient number, since it is larger than the sum of its proper divisors (1).

499270649 is an equidigital number, since it uses as much as digits as its factorization.

499270649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 499270649 is about 22344.3650390876. The cubic root of 499270649 is about 793.3144140009.

The spelling of 499270649 in words is "four hundred ninety-nine million, two hundred seventy thousand, six hundred forty-nine".