18826741 has 2 divisors, whose sum is σ = 18826742. Its totient is φ = 18826740.

The previous prime is 18826729. The next prime is 18826781. The reversal of 18826741 is 14762881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18748900 + 77841 = 4330^2 + 279^2 .

It is a cyclic number.

It is not a de Polignac number, because 18826741 - 2²¹ = 16729589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18826741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18826711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9413370 + 9413371.

It is an arithmetic number, because the mean of its divisors is an integer number (9413371).

Almost surely, 2^18826741 is an apocalyptic number.

It is an amenable number.

18826741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18826741 is an equidigital number, since it uses as much as digits as its factorization.

18826741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 37.

The square root of 18826741 is about 4338.9792578439. The cubic root of 18826741 is about 266.0265910817.

The spelling of 18826741 in words is "eighteen million, eight hundred twenty-six thousand, seven hundred forty-one".