427556347 has 2 divisors, whose sum is σ = 427556348. Its totient is φ = 427556346.

The previous prime is 427556329. The next prime is 427556351. The reversal of 427556347 is 743655724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427556347 - 2¹¹ = 427554299 is a prime.

It is not a weakly prime, because it can be changed into another prime (427556317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213778173 + 213778174.

It is an arithmetic number, because the mean of its divisors is an integer number (213778174).

Almost surely, 2^427556347 is an apocalyptic number.

427556347 is a deficient number, since it is larger than the sum of its proper divisors (1).

427556347 is an equidigital number, since it uses as much as digits as its factorization.

427556347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 43.

The square root of 427556347 is about 20677.4356969137. The cubic root of 427556347 is about 753.3517231047.

The spelling of 427556347 in words is "four hundred twenty-seven million, five hundred fifty-six thousand, three hundred forty-seven".