1117928587 has 2 divisors, whose sum is σ = 1117928588. Its totient is φ = 1117928586.

The previous prime is 1117928557. The next prime is 1117928599. The reversal of 1117928587 is 7858297111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1117928587 - 2⁷ = 1117928459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1117928587.

It is not a weakly prime, because it can be changed into another prime (1117928557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558964293 + 558964294.

It is an arithmetic number, because the mean of its divisors is an integer number (558964294).

Almost surely, 2^1117928587 is an apocalyptic number.

1117928587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117928587 is an equidigital number, since it uses as much as digits as its factorization.

1117928587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 49.

The square root of 1117928587 is about 33435.4390878900. The cubic root of 1117928587 is about 1037.8581990922.

The spelling of 1117928587 in words is "one billion, one hundred seventeen million, nine hundred twenty-eight thousand, five hundred eighty-seven".