427591 has 2 divisors, whose sum is σ = 427592. Its totient is φ = 427590.

The previous prime is 427579. The next prime is 427597. The reversal of 427591 is 195724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427591 - 2⁹ = 427079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213795 + 213796.

It is an arithmetic number, because the mean of its divisors is an integer number (213796).

2⁴²⁷⁵⁹¹ is an apocalyptic number.

427591 is a deficient number, since it is larger than the sum of its proper divisors (1).

427591 is an equidigital number, since it uses as much as digits as its factorization.

427591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 427591 is about 653.9044272675. The cubic root of 427591 is about 75.3372075348.

The spelling of 427591 in words is "four hundred twenty-seven thousand, five hundred ninety-one".