4491829 has 2 divisors, whose sum is σ = 4491830. Its totient is φ = 4491828.

The previous prime is 4491827. The next prime is 4491833. The reversal of 4491829 is 9281944.

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., 3617604 + 874225 = 1902^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 4491829 - 2¹ = 4491827 is a prime.

Together with 4491827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4491827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245914 + 2245915.

It is an arithmetic number, because the mean of its divisors is an integer number (2245915).

Almost surely, 2^4491829 is an apocalyptic number.

It is an amenable number.

4491829 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491829 is an equidigital number, since it uses as much as digits as its factorization.

4491829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 4491829 is about 2119.3935453332. The cubic root of 4491829 is about 164.9963758004.

It can be divided in two parts, 449 and 1829, that added together give a triangular number (2278 = T₆₇).

The spelling of 4491829 in words is "four million, four hundred ninety-one thousand, eight hundred twenty-nine".