842377741 has 2 divisors, whose sum is σ = 842377742. Its totient is φ = 842377740.

The previous prime is 842377721. The next prime is 842377747. The reversal of 842377741 is 147773248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832322500 + 10055241 = 28850^2 + 3171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842377741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842377747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421188870 + 421188871.

It is an arithmetic number, because the mean of its divisors is an integer number (421188871).

Almost surely, 2^842377741 is an apocalyptic number.

It is an amenable number.

842377741 is a deficient number, since it is larger than the sum of its proper divisors (1).

842377741 is an equidigital number, since it uses as much as digits as its factorization.

842377741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 43.

The square root of 842377741 is about 29023.7444345143. The cubic root of 842377741 is about 944.4282315243.

The spelling of 842377741 in words is "eight hundred forty-two million, three hundred seventy-seven thousand, seven hundred forty-one".