841228747 has 2 divisors, whose sum is σ = 841228748. Its totient is φ = 841228746.

The previous prime is 841228733. The next prime is 841228771. The reversal of 841228747 is 747822148.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841228747 is a prime.

It is not a weakly prime, because it can be changed into another prime (841228727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420614373 + 420614374.

It is an arithmetic number, because the mean of its divisors is an integer number (420614374).

Almost surely, 2^841228747 is an apocalyptic number.

841228747 is a deficient number, since it is larger than the sum of its proper divisors (1).

841228747 is an equidigital number, since it uses as much as digits as its factorization.

841228747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 43.

The square root of 841228747 is about 29003.9436456493. The cubic root of 841228747 is about 943.9986395622.

The spelling of 841228747 in words is "eight hundred forty-one million, two hundred twenty-eight thousand, seven hundred forty-seven".