91001683 has 2 divisors, whose sum is σ = 91001684. Its totient is φ = 91001682.

The previous prime is 91001671. The next prime is 91001711. The reversal of 91001683 is 38610019.

It is a happy number.

It is an a-pointer prime, because the next prime (91001711) can be obtained adding 91001683 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91001683 is a prime.

It is not a weakly prime, because it can be changed into another prime (91001083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45500841 + 45500842.

It is an arithmetic number, because the mean of its divisors is an integer number (45500842).

Almost surely, 2^91001683 is an apocalyptic number.

91001683 is a deficient number, since it is larger than the sum of its proper divisors (1).

91001683 is an equidigital number, since it uses as much as digits as its factorization.

91001683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 91001683 is about 9539.4802269306. The cubic root of 91001683 is about 449.7969174172.

The spelling of 91001683 in words is "ninety-one million, one thousand, six hundred eighty-three".