1427305387 has 2 divisors, whose sum is σ = 1427305388. Its totient is φ = 1427305386.

The previous prime is 1427305361. The next prime is 1427305427. The reversal of 1427305387 is 7835037241.

It is a happy number.

It is an a-pointer prime, because the next prime (1427305427) can be obtained adding 1427305387 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427305387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1427305487) 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, 713652693 + 713652694.

It is an arithmetic number, because the mean of its divisors is an integer number (713652694).

Almost surely, 2^1427305387 is an apocalyptic number.

1427305387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427305387 is an equidigital number, since it uses as much as digits as its factorization.

1427305387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1427305387 is about 37779.6954328645. The cubic root of 1427305387 is about 1125.9150775625.

The spelling of 1427305387 in words is "one billion, four hundred twenty-seven million, three hundred five thousand, three hundred eighty-seven".