427883279 has 2 divisors, whose sum is σ = 427883280. Its totient is φ = 427883278.

The previous prime is 427883231. The next prime is 427883299. The reversal of 427883279 is 972388724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427883279 - 2¹⁶ = 427817743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427883299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213941639 + 213941640.

It is an arithmetic number, because the mean of its divisors is an integer number (213941640).

Almost surely, 2^427883279 is an apocalyptic number.

427883279 is a deficient number, since it is larger than the sum of its proper divisors (1).

427883279 is an equidigital number, since it uses as much as digits as its factorization.

427883279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 427883279 is about 20685.3397119796. The cubic root of 427883279 is about 753.5436915920.

Subtracting 427883279 from its reverse (972388724), we obtain a palindrome (544505445).

The spelling of 427883279 in words is "four hundred twenty-seven million, eight hundred eighty-three thousand, two hundred seventy-nine".