1913890967 has 2 divisors, whose sum is σ = 1913890968. Its totient is φ = 1913890966.

The previous prime is 1913890939. The next prime is 1913891009. The reversal of 1913890967 is 7690983191.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1913890967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1913896967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956945483 + 956945484.

It is an arithmetic number, because the mean of its divisors is an integer number (956945484).

Almost surely, 2^1913890967 is an apocalyptic number.

1913890967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913890967 is an equidigital number, since it uses as much as digits as its factorization.

1913890967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 1913890967 is about 43748.0395789343. The cubic root of 1913890967 is about 1241.5733944641.

The spelling of 1913890967 in words is "one billion, nine hundred thirteen million, eight hundred ninety thousand, nine hundred sixty-seven".