91683443 has 2 divisors, whose sum is σ = 91683444. Its totient is φ = 91683442.

The previous prime is 91683433. The next prime is 91683491. The reversal of 91683443 is 34438619.

It is a weak prime.

It is an emirp because it is prime and its reverse (34438619) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91683443 - 2⁸ = 91683187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91683397 and 91683406.

It is not a weakly prime, because it can be changed into another prime (91683433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45841721 + 45841722.

It is an arithmetic number, because the mean of its divisors is an integer number (45841722).

Almost surely, 2^91683443 is an apocalyptic number.

91683443 is a deficient number, since it is larger than the sum of its proper divisors (1).

91683443 is an equidigital number, since it uses as much as digits as its factorization.

91683443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 91683443 is about 9575.1471529162. The cubic root of 91683443 is about 450.9173762896.

The spelling of 91683443 in words is "ninety-one million, six hundred eighty-three thousand, four hundred forty-three".