441309797 has 4 divisors (see below), whose sum is σ = 441374220. Its totient is φ = 441245376.

The previous prime is 441309779. The next prime is 441309811. The reversal of 441309797 is 797903144.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 331458436 + 109851361 = 18206^2 + 10481^2 .

It is a cyclic number.

It is not a de Polignac number, because 441309797 - 2²⁶ = 374200933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441309727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20522 + ... + 36107.

It is an arithmetic number, because the mean of its divisors is an integer number (110343555).

Almost surely, 2^441309797 is an apocalyptic number.

It is an amenable number.

441309797 is a deficient number, since it is larger than the sum of its proper divisors (64423).

441309797 is an equidigital number, since it uses as much as digits as its factorization.

441309797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64422.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 441309797 is about 21007.3748240945. The cubic root of 441309797 is about 761.3444559838.

The spelling of 441309797 in words is "four hundred forty-one million, three hundred nine thousand, seven hundred ninety-seven".