689892 has 48 divisors (see below), whose sum is σ = 1892352. Its totient is φ = 191520.

The previous prime is 689891. The next prime is 689893. The reversal of 689892 is 298986.

It is an interprime number because it is at equal distance from previous prime (689891) and next prime (689893).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689892.

It is not an unprimeable number, because it can be changed into a prime (689891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3517 + ... + 3707.

It is an arithmetic number, because the mean of its divisors is an integer number (39424).

2⁶⁸⁹⁸⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946176).

689892 is an abundant number, since it is smaller than the sum of its proper divisors (1202460).

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

689892 is a wasteful number, since it uses less digits than its factorization.

689892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 689892 is about 830.5973753871. The cubic root of 689892 is about 88.3609486065.

It can be divided in two parts, 6 and 89892, that added together give a palindrome (89898).

The spelling of 689892 in words is "six hundred eighty-nine thousand, eight hundred ninety-two".