694289 has 8 divisors (see below), whose sum is σ = 729000. Its totient is φ = 660352.

The previous prime is 694277. The next prime is 694313. The reversal of 694289 is 982496.

It can be written as a sum of positive squares in 4 ways, for example, as 400 + 693889 = 20^2 + 833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 694289 - 2⁴ = 694273 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447 + ... + 2715.

It is an arithmetic number, because the mean of its divisors is an integer number (91125).

2⁶⁹⁴²⁸⁹ is an apocalyptic number.

It is an amenable number.

694289 is a deficient number, since it is larger than the sum of its proper divisors (34711).

694289 is a wasteful number, since it uses less digits than its factorization.

694289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its digits is 31104, while the sum is 38.

The square root of 694289 is about 833.2400614469. The cubic root of 694289 is about 88.5482728973.

The spelling of 694289 in words is "six hundred ninety-four thousand, two hundred eighty-nine".