693678 has 8 divisors (see below), whose sum is σ = 1387368. Its totient is φ = 231224.

The previous prime is 693677. The next prime is 693683. The reversal of 693678 is 876396.

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

693678 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57801 + ... + 57812.

It is an arithmetic number, because the mean of its divisors is an integer number (173421).

2⁶⁹³⁶⁷⁸ is an apocalyptic number.

693678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

693678 is a wasteful number, since it uses less digits than its factorization.

693678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115618.

The product of its digits is 54432, while the sum is 39.

The square root of 693678 is about 832.8733397102. The cubic root of 693678 is about 88.5222900221.

The spelling of 693678 in words is "six hundred ninety-three thousand, six hundred seventy-eight".