441421537 has 2 divisors, whose sum is σ = 441421538. Its totient is φ = 441421536.

The previous prime is 441421517. The next prime is 441421553. The reversal of 441421537 is 735124144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262958656 + 178462881 = 16216^2 + 13359^2 .

It is a cyclic number.

It is not a de Polignac number, because 441421537 - 2¹⁵ = 441388769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 441421499 and 441421508.

It is not a weakly prime, because it can be changed into another prime (441421517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220710768 + 220710769.

It is an arithmetic number, because the mean of its divisors is an integer number (220710769).

Almost surely, 2^441421537 is an apocalyptic number.

It is an amenable number.

441421537 is a deficient number, since it is larger than the sum of its proper divisors (1).

441421537 is an equidigital number, since it uses as much as digits as its factorization.

441421537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 441421537 is about 21010.0341979731. The cubic root of 441421537 is about 761.4087082399.

The spelling of 441421537 in words is "four hundred forty-one million, four hundred twenty-one thousand, five hundred thirty-seven".