1082785867 has 2 divisors, whose sum is σ = 1082785868. Its totient is φ = 1082785866.

The previous prime is 1082785853. The next prime is 1082785883. The reversal of 1082785867 is 7685872801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082785867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1082785897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541392933 + 541392934.

It is an arithmetic number, because the mean of its divisors is an integer number (541392934).

Almost surely, 2^1082785867 is an apocalyptic number.

1082785867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1082785867 is an equidigital number, since it uses as much as digits as its factorization.

1082785867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The square root of 1082785867 is about 32905.7117686276. The cubic root of 1082785867 is about 1026.8669893700.

The spelling of 1082785867 in words is "one billion, eighty-two million, seven hundred eighty-five thousand, eight hundred sixty-seven".