498137779 has 2 divisors, whose sum is σ = 498137780. Its totient is φ = 498137778.

The previous prime is 498137753. The next prime is 498137789. The reversal of 498137779 is 977731894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 498137779 - 2¹⁹ = 497613491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (498137789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249068889 + 249068890.

It is an arithmetic number, because the mean of its divisors is an integer number (249068890).

Almost surely, 2^498137779 is an apocalyptic number.

498137779 is a deficient number, since it is larger than the sum of its proper divisors (1).

498137779 is an equidigital number, since it uses as much as digits as its factorization.

498137779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 55.

The square root of 498137779 is about 22319.0004032439. Note that the first 3 decimals coincide. The cubic root of 498137779 is about 792.7139362783.

The spelling of 498137779 in words is "four hundred ninety-eight million, one hundred thirty-seven thousand, seven hundred seventy-nine".