690630 has 16 divisors (see below), whose sum is σ = 1657584. Its totient is φ = 184160.

The previous prime is 690629. The next prime is 690661. The reversal of 690630 is 36096.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 690630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11481 + ... + 11540.

It is an arithmetic number, because the mean of its divisors is an integer number (103599).

2⁶⁹⁰⁶³⁰ is an apocalyptic number.

690630 is an abundant number, since it is smaller than the sum of its proper divisors (966954).

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

690630 is a wasteful number, since it uses less digits than its factorization.

690630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23031.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 690630 is about 831.0415152085. The cubic root of 690630 is about 88.3924449089.

The spelling of 690630 in words is "six hundred ninety thousand, six hundred thirty".