694403 has 4 divisors (see below), whose sum is σ = 696168. Its totient is φ = 692640.

The previous prime is 694391. The next prime is 694409. The reversal of 694403 is 304496.

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 694403 - 2⁴ = 694387 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694403.

It is not an unprimeable number, because it can be changed into a prime (694409) 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, 8 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (174042).

2⁶⁹⁴⁴⁰³ is an apocalyptic number.

694403 is a deficient number, since it is larger than the sum of its proper divisors (1765).

694403 is a wasteful number, since it uses less digits than its factorization.

694403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 694403 is about 833.3084662956. The cubic root of 694403 is about 88.5531190784.

Adding to 694403 its reverse (304496), we get a palindrome (998899).

The spelling of 694403 in words is "six hundred ninety-four thousand, four hundred three".