694481 has 2 divisors, whose sum is σ = 694482. Its totient is φ = 694480.

The previous prime is 694471. The next prime is 694483. The reversal of 694481 is 184496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654481 + 40000 = 809^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 694481 - 2¹⁸ = 432337 is a prime.

It is a super-2 number, since 2×694481² = 964607718722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 694483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694481.

It is not a weakly prime, because it can be changed into another prime (694483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347240 + 347241.

It is an arithmetic number, because the mean of its divisors is an integer number (347241).

2⁶⁹⁴⁴⁸¹ is an apocalyptic number.

It is an amenable number.

694481 is a deficient number, since it is larger than the sum of its proper divisors (1).

694481 is an equidigital number, since it uses as much as digits as its factorization.

694481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 694481 is about 833.3552663780. The cubic root of 694481 is about 88.5564345809.

The spelling of 694481 in words is "six hundred ninety-four thousand, four hundred eighty-one".