427221259 has 2 divisors, whose sum is σ = 427221260. Its totient is φ = 427221258.

The previous prime is 427221241. The next prime is 427221313. The reversal of 427221259 is 952122724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427221259 - 2¹¹ = 427219211 is a prime.

It is not a weakly prime, because it can be changed into another prime (427221229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213610629 + 213610630.

It is an arithmetic number, because the mean of its divisors is an integer number (213610630).

Almost surely, 2^427221259 is an apocalyptic number.

427221259 is a deficient number, since it is larger than the sum of its proper divisors (1).

427221259 is an equidigital number, since it uses as much as digits as its factorization.

427221259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 427221259 is about 20669.3313631573. The cubic root of 427221259 is about 753.1548639845.

The spelling of 427221259 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, two hundred fifty-nine".