499983089 has 2 divisors, whose sum is σ = 499983090. Its totient is φ = 499983088.

The previous prime is 499983083. The next prime is 499983091. The reversal of 499983089 is 980389994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324288064 + 175695025 = 18008^2 + 13255^2 .

It is a cyclic number.

It is not a de Polignac number, because 499983089 - 2¹⁶ = 499917553 is a prime.

Together with 499983091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499983083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249991544 + 249991545.

It is an arithmetic number, because the mean of its divisors is an integer number (249991545).

Almost surely, 2^499983089 is an apocalyptic number.

It is an amenable number.

499983089 is a deficient number, since it is larger than the sum of its proper divisors (1).

499983089 is an equidigital number, since it uses as much as digits as its factorization.

499983089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The square root of 499983089 is about 22360.3016303448. The cubic root of 499983089 is about 793.6915777035.

It can be divided in two parts, 4999 and 83089, that added together give a palindrome (88088).

The spelling of 499983089 in words is "four hundred ninety-nine million, nine hundred eighty-three thousand, eighty-nine".