1078782697 has 2 divisors, whose sum is σ = 1078782698. Its totient is φ = 1078782696.

The previous prime is 1078782659. The next prime is 1078782709. The reversal of 1078782697 is 7962878701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608066281 + 470716416 = 24659^2 + 21696^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078782697 - 2⁷ = 1078782569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1078782647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539391348 + 539391349.

It is an arithmetic number, because the mean of its divisors is an integer number (539391349).

Almost surely, 2^1078782697 is an apocalyptic number.

It is an amenable number.

1078782697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078782697 is an equidigital number, since it uses as much as digits as its factorization.

1078782697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The square root of 1078782697 is about 32844.8275532084. The cubic root of 1078782697 is about 1025.5999492275.

The spelling of 1078782697 in words is "one billion, seventy-eight million, seven hundred eighty-two thousand, six hundred ninety-seven".