499187279 has 2 divisors, whose sum is σ = 499187280. Its totient is φ = 499187278.

The previous prime is 499187267. The next prime is 499187347. The reversal of 499187279 is 972781994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499187279 - 2¹⁶ = 499121743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499157279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249593639 + 249593640.

It is an arithmetic number, because the mean of its divisors is an integer number (249593640).

Almost surely, 2^499187279 is an apocalyptic number.

499187279 is a deficient number, since it is larger than the sum of its proper divisors (1).

499187279 is an equidigital number, since it uses as much as digits as its factorization.

499187279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 56.

The square root of 499187279 is about 22342.4993901757. The cubic root of 499187279 is about 793.2702547160.

The spelling of 499187279 in words is "four hundred ninety-nine million, one hundred eighty-seven thousand, two hundred seventy-nine".