689361 has 8 divisors (see below), whose sum is σ = 934464. Its totient is φ = 451920.

The previous prime is 689357. The next prime is 689369. The reversal of 689361 is 163986.

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

It is not a de Polignac number, because 689361 - 2² = 689357 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689361.

It is not an unprimeable number, because it can be changed into a prime (689369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701 + ... + 2066.

It is an arithmetic number, because the mean of its divisors is an integer number (116808).

2⁶⁸⁹³⁶¹ is an apocalyptic number.

689361 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

689361 is a deficient number, since it is larger than the sum of its proper divisors (245103).

689361 is a wasteful number, since it uses less digits than its factorization.

689361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its digits is 7776, while the sum is 33.

The square root of 689361 is about 830.2776643991. The cubic root of 689361 is about 88.3382727351.

The spelling of 689361 in words is "six hundred eighty-nine thousand, three hundred sixty-one".