693693 has 54 divisors (see below), whose sum is σ = 1379742. Its totient is φ = 332640.

The previous prime is 693691. The next prime is 693697. The reversal of 693693 is 396396.

It can be written as a sum of positive squares in only one way, i.e., 480249 + 213444 = 693^2 + 462^2 .

It is not a de Polignac number, because 693693 - 2¹ = 693691 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 693693.

It is not an unprimeable number, because it can be changed into a prime (693691) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 53355 + ... + 53367.

2⁶⁹³⁶⁹³ is an apocalyptic number.

693693 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

693693 is a deficient number, since it is larger than the sum of its proper divisors (686049).

693693 is a wasteful number, since it uses less digits than its factorization.

693693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 34 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 693693 is about 832.8823446322. The cubic root of 693693 is about 88.5229280822.

The spelling of 693693 in words is "six hundred ninety-three thousand, six hundred ninety-three".