1017961667 has 2 divisors, whose sum is σ = 1017961668. Its totient is φ = 1017961666.

The previous prime is 1017961657. The next prime is 1017961687. The reversal of 1017961667 is 7661697101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1017961667 is a prime.

It is not a weakly prime, because it can be changed into another prime (1017961627) 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, 508980833 + 508980834.

It is an arithmetic number, because the mean of its divisors is an integer number (508980834).

Almost surely, 2^1017961667 is an apocalyptic number.

1017961667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017961667 is an equidigital number, since it uses as much as digits as its factorization.

1017961667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 1017961667 is about 31905.5115458129. The cubic root of 1017961667 is about 1005.9517289793.

The spelling of 1017961667 in words is "one billion, seventeen million, nine hundred sixty-one thousand, six hundred sixty-seven".