690112 has 28 divisors (see below), whose sum is σ = 1408176. Its totient is φ = 335360.

The previous prime is 690103. The next prime is 690119. The reversal of 690112 is 211096.

It is a self number, because there is not a number n which added to its sum of digits gives 690112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690119) by changing a digit.

690112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (50292).

2⁶⁹⁰¹¹² 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 690112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704088).

690112 is an abundant number, since it is smaller than the sum of its proper divisors (718064).

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

690112 is a wasteful number, since it uses less digits than its factorization.

690112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 690112 is about 830.7297996340. The cubic root of 690112 is about 88.3703400971.

The spelling of 690112 in words is "six hundred ninety thousand, one hundred twelve".