841229749 has 2 divisors, whose sum is σ = 841229750. Its totient is φ = 841229748.

The previous prime is 841229699. The next prime is 841229771. The reversal of 841229749 is 947922148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529460100 + 311769649 = 23010^2 + 17657^2 .

It is a cyclic number.

It is not a de Polignac number, because 841229749 - 2¹¹ = 841227701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 841229699 and 841229708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (841229849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420614874 + 420614875.

It is an arithmetic number, because the mean of its divisors is an integer number (420614875).

Almost surely, 2^841229749 is an apocalyptic number.

It is an amenable number.

841229749 is a deficient number, since it is larger than the sum of its proper divisors (1).

841229749 is an equidigital number, since it uses as much as digits as its factorization.

841229749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 841229749 is about 29003.9609191572. The cubic root of 841229749 is about 943.9990143657. Note that the first 3 decimals are identical.

The spelling of 841229749 in words is "eight hundred forty-one million, two hundred twenty-nine thousand, seven hundred forty-nine".