18936353 has 2 divisors, whose sum is σ = 18936354. Its totient is φ = 18936352.

The previous prime is 18936343. The next prime is 18936371. The reversal of 18936353 is 35363981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16589329 + 2347024 = 4073^2 + 1532^2 .

It is a cyclic number.

It is not a de Polignac number, because 18936353 - 2⁶ = 18936289 is a prime.

It is not a weakly prime, because it can be changed into another prime (18936343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9468176 + 9468177.

It is an arithmetic number, because the mean of its divisors is an integer number (9468177).

Almost surely, 2^18936353 is an apocalyptic number.

It is an amenable number.

18936353 is a deficient number, since it is larger than the sum of its proper divisors (1).

18936353 is an equidigital number, since it uses as much as digits as its factorization.

18936353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 18936353 is about 4351.5920075301. The cubic root of 18936353 is about 266.5418740749.

The spelling of 18936353 in words is "eighteen million, nine hundred thirty-six thousand, three hundred fifty-three".