842485741 has 2 divisors, whose sum is σ = 842485742. Its totient is φ = 842485740.

The previous prime is 842485717. The next prime is 842485771. The reversal of 842485741 is 147584248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579364900 + 263120841 = 24070^2 + 16221^2 .

It is a cyclic number.

It is not a de Polignac number, because 842485741 - 2⁹ = 842485229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842485771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421242870 + 421242871.

It is an arithmetic number, because the mean of its divisors is an integer number (421242871).

Almost surely, 2^842485741 is an apocalyptic number.

It is an amenable number.

842485741 is a deficient number, since it is larger than the sum of its proper divisors (1).

842485741 is an equidigital number, since it uses as much as digits as its factorization.

842485741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 286720, while the sum is 43.

The square root of 842485741 is about 29025.6049204836. The cubic root of 842485741 is about 944.4685910469.

The spelling of 842485741 in words is "eight hundred forty-two million, four hundred eighty-five thousand, seven hundred forty-one".