427431559 has 2 divisors, whose sum is σ = 427431560. Its totient is φ = 427431558.

The previous prime is 427431553. The next prime is 427431569. The reversal of 427431559 is 955134724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427431559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427431553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213715779 + 213715780.

It is an arithmetic number, because the mean of its divisors is an integer number (213715780).

Almost surely, 2^427431559 is an apocalyptic number.

427431559 is a deficient number, since it is larger than the sum of its proper divisors (1).

427431559 is an equidigital number, since it uses as much as digits as its factorization.

427431559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 427431559 is about 20674.4179845528. The cubic root of 427431559 is about 753.2784240702.

The spelling of 427431559 in words is "four hundred twenty-seven million, four hundred thirty-one thousand, five hundred fifty-nine".