785630057 has 2 divisors, whose sum is σ = 785630058. Its totient is φ = 785630056.

The previous prime is 785630029. The next prime is 785630089. The reversal of 785630057 is 750036587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687540841 + 98089216 = 26221^2 + 9904^2 .

It is a cyclic number.

It is not a de Polignac number, because 785630057 - 2¹² = 785625961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 785629996 and 785630023.

It is not a weakly prime, because it can be changed into another prime (785636057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392815028 + 392815029.

It is an arithmetic number, because the mean of its divisors is an integer number (392815029).

Almost surely, 2^785630057 is an apocalyptic number.

It is an amenable number.

785630057 is a deficient number, since it is larger than the sum of its proper divisors (1).

785630057 is an equidigital number, since it uses as much as digits as its factorization.

785630057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 785630057 is about 28029.0930463331. The cubic root of 785630057 is about 922.7258699327.

The spelling of 785630057 in words is "seven hundred eighty-five million, six hundred thirty thousand, fifty-seven".