1017428047 has 2 divisors, whose sum is σ = 1017428048. Its totient is φ = 1017428046.

The previous prime is 1017428039. The next prime is 1017428057. The reversal of 1017428047 is 7408247101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1017428047 - 2³ = 1017428039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1017428057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508714023 + 508714024.

It is an arithmetic number, because the mean of its divisors is an integer number (508714024).

Almost surely, 2^1017428047 is an apocalyptic number.

1017428047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017428047 is an equidigital number, since it uses as much as digits as its factorization.

1017428047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1017428047 is about 31897.1479446047. The cubic root of 1017428047 is about 1005.7759234772.

The spelling of 1017428047 in words is "one billion, seventeen million, four hundred twenty-eight thousand, forty-seven".