689154 has 8 divisors (see below), whose sum is σ = 1378320. Its totient is φ = 229716.

The previous prime is 689141. The next prime is 689167. The reversal of 689154 is 451986.

It is an interprime number because it is at equal distance from previous prime (689141) and next prime (689167).

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

689154 is an admirable number.

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 unprimeable number.

689154 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57424 + ... + 57435.

It is an arithmetic number, because the mean of its divisors is an integer number (172290).

2⁶⁸⁹¹⁵⁴ is an apocalyptic number.

689154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689154 is a wasteful number, since it uses less digits than its factorization.

689154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114864.

The product of its digits is 8640, while the sum is 33.

The square root of 689154 is about 830.1529979468. The cubic root of 689154 is about 88.3294298342.

The spelling of 689154 in words is "six hundred eighty-nine thousand, one hundred fifty-four".