693213907 has 4 divisors (see below), whose sum is σ = 711949456. Its totient is φ = 674478360.

The previous prime is 693213901. The next prime is 693213919. The reversal of 693213907 is 709312396.

693213907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 693213907 - 2¹¹ = 693211859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 693213907.

It is not an unprimeable number, because it can be changed into a prime (693213901) 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, 9367719 + ... + 9367792.

It is an arithmetic number, because the mean of its divisors is an integer number (177987364).

Almost surely, 2^693213907 is an apocalyptic number.

693213907 is a deficient number, since it is larger than the sum of its proper divisors (18735549).

693213907 is a wasteful number, since it uses less digits than its factorization.

693213907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18735548.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 693213907 is about 26328.9556762132. The cubic root of 693213907 is about 885.0254419362.

The spelling of 693213907 in words is "six hundred ninety-three million, two hundred thirteen thousand, nine hundred seven".