17964091 has 2 divisors, whose sum is σ = 17964092. Its totient is φ = 17964090.

The previous prime is 17964071. The next prime is 17964103. The reversal of 17964091 is 19046971.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17964091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17964091.

It is not a weakly prime, because it can be changed into another prime (17964061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8982045 + 8982046.

It is an arithmetic number, because the mean of its divisors is an integer number (8982046).

Almost surely, 2^17964091 is an apocalyptic number.

17964091 is a deficient number, since it is larger than the sum of its proper divisors (1).

17964091 is an equidigital number, since it uses as much as digits as its factorization.

17964091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 17964091 is about 4238.4066581677. The cubic root of 17964091 is about 261.8997489535.

The spelling of 17964091 in words is "seventeen million, nine hundred sixty-four thousand, ninety-one".