419985739 has 2 divisors, whose sum is σ = 419985740. Its totient is φ = 419985738.

The previous prime is 419985677. The next prime is 419985817. The reversal of 419985739 is 937589914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 419985739 - 2⁹ = 419985227 is a prime.

It is a super-2 number, since 2×419985739² = 352776041926752242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 419985739.

It is not a weakly prime, because it can be changed into another prime (419980739) 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, 209992869 + 209992870.

It is an arithmetic number, because the mean of its divisors is an integer number (209992870).

Almost surely, 2^419985739 is an apocalyptic number.

419985739 is a deficient number, since it is larger than the sum of its proper divisors (1).

419985739 is an equidigital number, since it uses as much as digits as its factorization.

419985739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 55.

The square root of 419985739 is about 20493.5535961921. The cubic root of 419985739 is about 748.8787625300.

The spelling of 419985739 in words is "four hundred nineteen million, nine hundred eighty-five thousand, seven hundred thirty-nine".