499066591 has 2 divisors, whose sum is σ = 499066592. Its totient is φ = 499066590.

The previous prime is 499066577. The next prime is 499066651. The reversal of 499066591 is 195660994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499066591 - 2⁹ = 499066079 is a prime.

It is a super-2 number, since 2×499066591² = 498134924504722562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499036591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249533295 + 249533296.

It is an arithmetic number, because the mean of its divisors is an integer number (249533296).

Almost surely, 2^499066591 is an apocalyptic number.

499066591 is a deficient number, since it is larger than the sum of its proper divisors (1).

499066591 is an equidigital number, since it uses as much as digits as its factorization.

499066591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 499066591 is about 22339.7983652494. The cubic root of 499066591 is about 793.2063201828.

It can be divided in two parts, 4990665 and 91, that added together give a square (4990756 = 2234²).

The spelling of 499066591 in words is "four hundred ninety-nine million, sixty-six thousand, five hundred ninety-one".