499280387 has 2 divisors, whose sum is σ = 499280388. Its totient is φ = 499280386.

The previous prime is 499280377. The next prime is 499280413. The reversal of 499280387 is 783082994.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499280387 - 2¹⁶ = 499214851 is a prime.

It is not a weakly prime, because it can be changed into another prime (499280377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249640193 + 249640194.

It is an arithmetic number, because the mean of its divisors is an integer number (249640194).

Almost surely, 2^499280387 is an apocalyptic number.

499280387 is a deficient number, since it is larger than the sum of its proper divisors (1).

499280387 is an equidigital number, since it uses as much as digits as its factorization.

499280387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 499280387 is about 22344.5829453136. The cubic root of 499280387 is about 793.3195716881.

The spelling of 499280387 in words is "four hundred ninety-nine million, two hundred eighty thousand, three hundred eighty-seven".