498379391 has 2 divisors, whose sum is σ = 498379392. Its totient is φ = 498379390.

The previous prime is 498379351. The next prime is 498379397. The reversal of 498379391 is 193973894.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498379391 is a prime.

It is a Sophie Germain 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 (498379397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249189695 + 249189696.

It is an arithmetic number, because the mean of its divisors is an integer number (249189696).

Almost surely, 2^498379391 is an apocalyptic number.

498379391 is a deficient number, since it is larger than the sum of its proper divisors (1).

498379391 is an equidigital number, since it uses as much as digits as its factorization.

498379391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 498379391 is about 22324.4124446759. The cubic root of 498379391 is about 792.8420790333.

The spelling of 498379391 in words is "four hundred ninety-eight million, three hundred seventy-nine thousand, three hundred ninety-one".