690830 has 32 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 231840.

The previous prime is 690817. The next prime is 690839. The reversal of 690830 is 38096.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 690830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690839) by changing a digit.

690830 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 15 ways as a sum of consecutive naturals, for example, 4901 + ... + 5039.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2⁶⁹⁰⁸³⁰ is an apocalyptic number.

690830 is an abundant number, since it is smaller than the sum of its proper divisors (760690).

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

690830 is a wasteful number, since it uses less digits than its factorization.

690830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 690830 is about 831.1618374300. The cubic root of 690830 is about 88.4009766277.

The spelling of 690830 in words is "six hundred ninety thousand, eight hundred thirty".