1427828117 has 2 divisors, whose sum is σ = 1427828118. Its totient is φ = 1427828116.

The previous prime is 1427828033. The next prime is 1427828177. The reversal of 1427828117 is 7118287241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1393827556 + 34000561 = 37334^2 + 5831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427828117 - 2⁸ = 1427827861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427828177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713914058 + 713914059.

It is an arithmetic number, because the mean of its divisors is an integer number (713914059).

Almost surely, 2^1427828117 is an apocalyptic number.

It is an amenable number.

1427828117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427828117 is an equidigital number, since it uses as much as digits as its factorization.

1427828117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 41.

The square root of 1427828117 is about 37786.6129336833. The cubic root of 1427828117 is about 1126.0525108358.

The spelling of 1427828117 in words is "one billion, four hundred twenty-seven million, eight hundred twenty-eight thousand, one hundred seventeen".