694835993 has 2 divisors, whose sum is σ = 694835994. Its totient is φ = 694835992.

The previous prime is 694835959. The next prime is 694836059. The reversal of 694835993 is 399538496.

694835993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 653978329 + 40857664 = 25573^2 + 6392^2 .

It is a cyclic number.

It is not a de Polignac number, because 694835993 - 2¹² = 694831897 is a prime.

It is not a weakly prime, because it can be changed into another prime (694835903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347417996 + 347417997.

It is an arithmetic number, because the mean of its divisors is an integer number (347417997).

Almost surely, 2^694835993 is an apocalyptic number.

It is an amenable number.

694835993 is a deficient number, since it is larger than the sum of its proper divisors (1).

694835993 is an equidigital number, since it uses as much as digits as its factorization.

694835993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 56.

The square root of 694835993 is about 26359.7418993434. The cubic root of 694835993 is about 885.7152093531.

The spelling of 694835993 in words is "six hundred ninety-four million, eight hundred thirty-five thousand, nine hundred ninety-three".