782660041 has 2 divisors, whose sum is σ = 782660042. Its totient is φ = 782660040.

The previous prime is 782659981. The next prime is 782660089. The reversal of 782660041 is 140066287.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778186816 + 4473225 = 27896^2 + 2115^2 .

It is an emirp because it is prime and its reverse (140066287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 782660041 - 2¹⁵ = 782627273 is a prime.

It is a super-2 number, since 2×782660041² = 1225113479556243362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782659979 and 782660006.

It is not a weakly prime, because it can be changed into another prime (782660341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391330020 + 391330021.

It is an arithmetic number, because the mean of its divisors is an integer number (391330021).

Almost surely, 2^782660041 is an apocalyptic number.

It is an amenable number.

782660041 is a deficient number, since it is larger than the sum of its proper divisors (1).

782660041 is an equidigital number, since it uses as much as digits as its factorization.

782660041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 782660041 is about 27976.0619280127. The cubic root of 782660041 is about 921.5616360899.

The spelling of 782660041 in words is "seven hundred eighty-two million, six hundred sixty thousand, forty-one".