4491769 has 2 divisors, whose sum is σ = 4491770. Its totient is φ = 4491768.

The previous prime is 4491761. The next prime is 4491787. The reversal of 4491769 is 9671944.

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., 3515625 + 976144 = 1875^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 4491769 - 2³ = 4491761 is a prime.

It is a super-2 number, since 2×4491769² = 40351977498722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4491761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245884 + 2245885.

It is an arithmetic number, because the mean of its divisors is an integer number (2245885).

Almost surely, 2^4491769 is an apocalyptic number.

It is an amenable number.

4491769 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491769 is an equidigital number, since it uses as much as digits as its factorization.

4491769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 4491769 is about 2119.3793902933. The cubic root of 4491769 is about 164.9956411459.

The spelling of 4491769 in words is "four million, four hundred ninety-one thousand, seven hundred sixty-nine".