693138 has 8 divisors (see below), whose sum is σ = 1386288. Its totient is φ = 231044.

The previous prime is 693137. The next prime is 693149. The reversal of 693138 is 831396.

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

693138 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 693138.

It is not an unprimeable number, because it can be changed into a prime (693137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57756 + ... + 57767.

It is an arithmetic number, because the mean of its divisors is an integer number (173286).

2⁶⁹³¹³⁸ is an apocalyptic number.

693138 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.

693138 is a wasteful number, since it uses less digits than its factorization.

693138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115528.

The product of its digits is 3888, while the sum is 30.

The square root of 693138 is about 832.5490976513. The cubic root of 693138 is about 88.4993137296.

The spelling of 693138 in words is "six hundred ninety-three thousand, one hundred thirty-eight".