18970411 has 2 divisors, whose sum is σ = 18970412. Its totient is φ = 18970410.

The previous prime is 18970361. The next prime is 18970433. The reversal of 18970411 is 11407981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18970411 is a prime.

It is not a weakly prime, because it can be changed into another prime (18970711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9485205 + 9485206.

It is an arithmetic number, because the mean of its divisors is an integer number (9485206).

Almost surely, 2^18970411 is an apocalyptic number.

18970411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18970411 is an equidigital number, since it uses as much as digits as its factorization.

18970411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 18970411 is about 4355.5035300181. The cubic root of 18970411 is about 266.7015747704.

The spelling of 18970411 in words is "eighteen million, nine hundred seventy thousand, four hundred eleven".