690330 has 16 divisors (see below), whose sum is σ = 1656864. Its totient is φ = 184080.

The previous prime is 690323. The next prime is 690341. The reversal of 690330 is 33096.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 690297 and 690306.

It is an unprimeable number.

690330 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 7 ways as a sum of consecutive naturals, for example, 11476 + ... + 11535.

It is an arithmetic number, because the mean of its divisors is an integer number (103554).

2⁶⁹⁰³³⁰ is an apocalyptic number.

690330 is an abundant number, since it is smaller than the sum of its proper divisors (966534).

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

690330 is a wasteful number, since it uses less digits than its factorization.

690330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23021.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 690330 is about 830.8609992050. The cubic root of 690330 is about 88.3796442419.

The spelling of 690330 in words is "six hundred ninety thousand, three hundred thirty".