694088441 has 2 divisors, whose sum is σ = 694088442. Its totient is φ = 694088440.

The previous prime is 694088429. The next prime is 694088489. The reversal of 694088441 is 144880496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658435600 + 35652841 = 25660^2 + 5971^2 .

It is a cyclic number.

It is not a de Polignac number, because 694088441 - 2⁶ = 694088377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 694088392 and 694088401.

It is not a weakly prime, because it can be changed into another prime (694088741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347044220 + 347044221.

It is an arithmetic number, because the mean of its divisors is an integer number (347044221).

Almost surely, 2^694088441 is an apocalyptic number.

It is an amenable number.

694088441 is a deficient number, since it is larger than the sum of its proper divisors (1).

694088441 is an equidigital number, since it uses as much as digits as its factorization.

694088441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 694088441 is about 26345.5582783892. The cubic root of 694088441 is about 885.3974577419.

The spelling of 694088441 in words is "six hundred ninety-four million, eighty-eight thousand, four hundred forty-one".