1782715741 has 2 divisors, whose sum is σ = 1782715742. Its totient is φ = 1782715740.

The previous prime is 1782715733. The next prime is 1782715747. The reversal of 1782715741 is 1475172871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139332516 + 643383225 = 33754^2 + 25365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1782715741 - 2³ = 1782715733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1782715747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891357870 + 891357871.

It is an arithmetic number, because the mean of its divisors is an integer number (891357871).

Almost surely, 2^1782715741 is an apocalyptic number.

It is an amenable number.

1782715741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1782715741 is an equidigital number, since it uses as much as digits as its factorization.

1782715741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 43.

The square root of 1782715741 is about 42222.2185703215. The cubic root of 1782715741 is about 1212.5343010242.

The spelling of 1782715741 in words is "one billion, seven hundred eighty-two million, seven hundred fifteen thousand, seven hundred forty-one".