690113 has 8 divisors (see below), whose sum is σ = 729000. Its totient is φ = 652288.

The previous prime is 690103. The next prime is 690119. The reversal of 690113 is 311096.

It can be written as a sum of positive squares in 4 ways, for example, as 204304 + 485809 = 452^2 + 697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690113 - 2¹⁰ = 689089 is a prime.

It is a Duffinian number.

It is a Curzon number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (91125).

2⁶⁹⁰¹¹³ is an apocalyptic number.

It is an amenable number.

690113 is a deficient number, since it is larger than the sum of its proper divisors (38887).

690113 is a wasteful number, since it uses less digits than its factorization.

690113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 690113 is about 830.7304015142. The cubic root of 690113 is about 88.3703827811.

The spelling of 690113 in words is "six hundred ninety thousand, one hundred thirteen".