1009791967 has 2 divisors, whose sum is σ = 1009791968. Its totient is φ = 1009791966.

The previous prime is 1009791947. The next prime is 1009791971. The reversal of 1009791967 is 7691979001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009791967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1009791967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009791947) 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, 504895983 + 504895984.

It is an arithmetic number, because the mean of its divisors is an integer number (504895984).

Almost surely, 2^1009791967 is an apocalyptic number.

1009791967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009791967 is an equidigital number, since it uses as much as digits as its factorization.

1009791967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 49.

The square root of 1009791967 is about 31777.2240291691. The cubic root of 1009791967 is about 1003.2533929557.

The spelling of 1009791967 in words is "one billion, nine million, seven hundred ninety-one thousand, nine hundred sixty-seven".