495421279 has 2 divisors, whose sum is σ = 495421280. Its totient is φ = 495421278.

The previous prime is 495421243. The next prime is 495421301. The reversal of 495421279 is 972124594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495421279 - 2⁷ = 495421151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495421079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247710639 + 247710640.

It is an arithmetic number, because the mean of its divisors is an integer number (247710640).

Almost surely, 2^495421279 is an apocalyptic number.

495421279 is a deficient number, since it is larger than the sum of its proper divisors (1).

495421279 is an equidigital number, since it uses as much as digits as its factorization.

495421279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 495421279 is about 22258.0609892237. The cubic root of 495421279 is about 791.2703372039.

The spelling of 495421279 in words is "four hundred ninety-five million, four hundred twenty-one thousand, two hundred seventy-nine".