696430081 has 2 divisors, whose sum is σ = 696430082. Its totient is φ = 696430080.

The previous prime is 696430079. The next prime is 696430127. The reversal of 696430081 is 180034696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688590081 + 7840000 = 26241^2 + 2800^2 .

It is a cyclic number.

It is not a de Polignac number, because 696430081 - 2¹ = 696430079 is a prime.

It is a super-3 number, since 3×696430081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 696430079, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 696430081.

It is not a weakly prime, because it can be changed into another prime (696430061) 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, 348215040 + 348215041.

It is an arithmetic number, because the mean of its divisors is an integer number (348215041).

Almost surely, 2^696430081 is an apocalyptic number.

It is an amenable number.

696430081 is a deficient number, since it is larger than the sum of its proper divisors (1).

696430081 is an equidigital number, since it uses as much as digits as its factorization.

696430081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 696430081 is about 26389.9617468461. The cubic root of 696430081 is about 886.3920259665.

The spelling of 696430081 in words is "six hundred ninety-six million, four hundred thirty thousand, eighty-one".