427081583 has 2 divisors, whose sum is σ = 427081584. Its totient is φ = 427081582.

The previous prime is 427081573. The next prime is 427081607. The reversal of 427081583 is 385180724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427081583 - 2⁶ = 427081519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427081553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213540791 + 213540792.

It is an arithmetic number, because the mean of its divisors is an integer number (213540792).

Almost surely, 2^427081583 is an apocalyptic number.

427081583 is a deficient number, since it is larger than the sum of its proper divisors (1).

427081583 is an equidigital number, since it uses as much as digits as its factorization.

427081583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 427081583 is about 20665.9522645340. The cubic root of 427081583 is about 753.0727760554.

The spelling of 427081583 in words is "four hundred twenty-seven million, eighty-one thousand, five hundred eighty-three".