18963341 has 2 divisors, whose sum is σ = 18963342. Its totient is φ = 18963340.

The previous prime is 18963337. The next prime is 18963377. The reversal of 18963341 is 14336981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 75625 = 4346^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 18963341 - 2² = 18963337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18963641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9481670 + 9481671.

It is an arithmetic number, because the mean of its divisors is an integer number (9481671).

Almost surely, 2^18963341 is an apocalyptic number.

It is an amenable number.

18963341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18963341 is an equidigital number, since it uses as much as digits as its factorization.

18963341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 18963341 is about 4354.6918375472. The cubic root of 18963341 is about 266.6684387035.

The spelling of 18963341 in words is "eighteen million, nine hundred sixty-three thousand, three hundred forty-one".