693938403 has 6 divisors (see below), whose sum is σ = 1002355484. Its totient is φ = 462625596.

The previous prime is 693938393. The next prime is 693938417. The reversal of 693938403 is 304839396.

693938403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 693938403 - 2²¹ = 691841251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693938423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38552125 + ... + 38552142.

Almost surely, 2^693938403 is an apocalyptic number.

693938403 is a deficient number, since it is larger than the sum of its proper divisors (308417081).

693938403 is a wasteful number, since it uses less digits than its factorization.

693938403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77104273 (or 77104270 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 693938403 is about 26342.7106236241. The cubic root of 693938403 is about 885.3336556724. Note that the first 3 decimals are identical.

The spelling of 693938403 in words is "six hundred ninety-three million, nine hundred thirty-eight thousand, four hundred three".