690193 has 8 divisors (see below), whose sum is σ = 807488. Its totient is φ = 577584.

The previous prime is 690187. The next prime is 690233. The reversal of 690193 is 391096.

It is a happy number.

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

It is not a de Polignac number, because 690193 - 2¹³ = 682001 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690103) 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, 846 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (100936).

2⁶⁹⁰¹⁹³ is an apocalyptic number.

It is an amenable number.

690193 is a deficient number, since it is larger than the sum of its proper divisors (117295).

690193 is a wasteful number, since it uses less digits than its factorization.

690193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 690193 is about 830.7785505175. The cubic root of 690193 is about 88.3737973704.

The spelling of 690193 in words is "six hundred ninety thousand, one hundred ninety-three".