693305 has 4 divisors (see below), whose sum is σ = 831972. Its totient is φ = 554640.

The previous prime is 693283. The next prime is 693317. The reversal of 693305 is 503396.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 219961 = 688^2 + 469^2 .

It is not a de Polignac number, because 693305 - 2¹⁰ = 692281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 693305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69326 + ... + 69335.

It is an arithmetic number, because the mean of its divisors is an integer number (207993).

2⁶⁹³³⁰⁵ is an apocalyptic number.

It is an amenable number.

693305 is a deficient number, since it is larger than the sum of its proper divisors (138667).

693305 is a wasteful number, since it uses less digits than its factorization.

693305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138666.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 693305 is about 832.6493859963. The cubic root of 693305 is about 88.5064206350.

The spelling of 693305 in words is "six hundred ninety-three thousand, three hundred five".