693387 has 16 divisors (see below), whose sum is σ = 1046560. Its totient is φ = 453600.

The previous prime is 693373. The next prime is 693397. The reversal of 693387 is 783396.

It is not a de Polignac number, because 693387 - 2⁶ = 693323 is a prime.

It is an Ulam number.

It is a Duffinian number.

693387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (693317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (65410).

2⁶⁹³³⁸⁷ is an apocalyptic number.

693387 is a deficient number, since it is larger than the sum of its proper divisors (353173).

693387 is a wasteful number, since it uses less digits than its factorization.

693387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 485 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 693387 is about 832.6986249538. The cubic root of 693387 is about 88.5099098354.

Subtracting 693387 from its reverse (783396), we obtain a palindrome (90009).

The spelling of 693387 in words is "six hundred ninety-three thousand, three hundred eighty-seven".