782041417 has 2 divisors, whose sum is σ = 782041418. Its totient is φ = 782041416.

The previous prime is 782041399. The next prime is 782041439. The reversal of 782041417 is 714140287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590052681 + 191988736 = 24291^2 + 13856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-782041417 is a prime.

It is a super-2 number, since 2×782041417² = 1223177555806735778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (782041457) 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, 391020708 + 391020709.

It is an arithmetic number, because the mean of its divisors is an integer number (391020709).

Almost surely, 2^782041417 is an apocalyptic number.

It is an amenable number.

782041417 is a deficient number, since it is larger than the sum of its proper divisors (1).

782041417 is an equidigital number, since it uses as much as digits as its factorization.

782041417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 782041417 is about 27965.0034328623. The cubic root of 782041417 is about 921.3187675875.

The spelling of 782041417 in words is "seven hundred eighty-two million, forty-one thousand, four hundred seventeen".