693983 has 4 divisors (see below), whose sum is σ = 698040. Its totient is φ = 689928.

The previous prime is 693967. The next prime is 693989. The reversal of 693983 is 389396.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 693983 - 2⁴ = 693967 is a prime.

It is a super-2 number, since 2×693983² = 963224808578, which contains 22 as substring.

It is a Duffinian number.

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 693983.

It is not an unprimeable number, because it can be changed into a prime (693989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (174510).

2⁶⁹³⁹⁸³ is an apocalyptic number.

693983 is a deficient number, since it is larger than the sum of its proper divisors (4057).

693983 is a wasteful number, since it uses less digits than its factorization.

693983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056.

The product of its digits is 34992, while the sum is 38.

The square root of 693983 is about 833.0564206583. The cubic root of 693983 is about 88.5352621034.

The spelling of 693983 in words is "six hundred ninety-three thousand, nine hundred eighty-three".