784715463997 has 2 divisors, whose sum is σ = 784715463998. Its totient is φ = 784715463996.

The previous prime is 784715463979. The next prime is 784715464051. The reversal of 784715463997 is 799364517487.

Together with previous prime (784715463979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450846445401 + 333869018596 = 671451^2 + 577814^2 .

It is a cyclic number.

It is not a de Polignac number, because 784715463997 - 2⁷ = 784715463869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (784715463937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392357731998 + 392357731999.

It is an arithmetic number, because the mean of its divisors is an integer number (392357731999).

Almost surely, 2^784715463997 is an apocalyptic number.

It is an amenable number.

784715463997 is a deficient number, since it is larger than the sum of its proper divisors (1).

784715463997 is an equidigital number, since it uses as much as digits as its factorization.

784715463997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320060160, while the sum is 70.

The spelling of 784715463997 in words is "seven hundred eighty-four billion, seven hundred fifteen million, four hundred sixty-three thousand, nine hundred ninety-seven".