419726869 has 2 divisors, whose sum is σ = 419726870. Its totient is φ = 419726868.

The previous prime is 419726863. The next prime is 419726939. The reversal of 419726869 is 968627914.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387577969 + 32148900 = 19687^2 + 5670^2 .

It is a cyclic number.

It is not a de Polignac number, because 419726869 - 2⁹ = 419726357 is a prime.

It is a super-2 number, since 2×419726869² = 352341289121086322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419726863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209863434 + 209863435.

It is an arithmetic number, because the mean of its divisors is an integer number (209863435).

Almost surely, 2^419726869 is an apocalyptic number.

It is an amenable number.

419726869 is a deficient number, since it is larger than the sum of its proper divisors (1).

419726869 is an equidigital number, since it uses as much as digits as its factorization.

419726869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 419726869 is about 20487.2367341230. The cubic root of 419726869 is about 748.7248667571.

It can be divided in two parts, 41972 and 6869, that added together give a square (48841 = 221²).

The spelling of 419726869 in words is "four hundred nineteen million, seven hundred twenty-six thousand, eight hundred sixty-nine".