696845081 has 2 divisors, whose sum is σ = 696845082. Its totient is φ = 696845080.

The previous prime is 696845069. The next prime is 696845101. The reversal of 696845081 is 180548696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695113225 + 1731856 = 26365^2 + 1316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696845081 is a prime.

It is a super-2 number, since 2×696845081² = 971186133827793122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (696841081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348422540 + 348422541.

It is an arithmetic number, because the mean of its divisors is an integer number (348422541).

Almost surely, 2^696845081 is an apocalyptic number.

It is an amenable number.

696845081 is a deficient number, since it is larger than the sum of its proper divisors (1).

696845081 is an equidigital number, since it uses as much as digits as its factorization.

696845081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 696845081 is about 26397.8234140620. The cubic root of 696845081 is about 886.5680568692.

The spelling of 696845081 in words is "six hundred ninety-six million, eight hundred forty-five thousand, eighty-one".