441621247 has 2 divisors, whose sum is σ = 441621248. Its totient is φ = 441621246.

The previous prime is 441621241. The next prime is 441621263. The reversal of 441621247 is 742126144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 441621247 - 2⁷ = 441621119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441621241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220810623 + 220810624.

It is an arithmetic number, because the mean of its divisors is an integer number (220810624).

Almost surely, 2^441621247 is an apocalyptic number.

441621247 is a deficient number, since it is larger than the sum of its proper divisors (1).

441621247 is an equidigital number, since it uses as much as digits as its factorization.

441621247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 31.

The square root of 441621247 is about 21014.7863895877. The cubic root of 441621247 is about 761.5235176259.

The spelling of 441621247 in words is "four hundred forty-one million, six hundred twenty-one thousand, two hundred forty-seven".