693341428 has 18 divisors (see below), whose sum is σ = 1313862774. Its totient is φ = 320003424.

The previous prime is 693341423. The next prime is 693341459. The reversal of 693341428 is 824143396.

It is a happy number.

693341428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 12027024 + 681314404 = 3468^2 + 26102^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693341423) 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, 512151 + ... + 513502.

Almost surely, 2^693341428 is an apocalyptic number.

It is an amenable number.

693341428 is a deficient number, since it is larger than the sum of its proper divisors (620521346).

693341428 is a wasteful number, since it uses less digits than its factorization.

693341428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025683 (or 1025668 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 693341428 is about 26331.3772522441. The cubic root of 693341428 is about 885.0797072496.

The spelling of 693341428 in words is "six hundred ninety-three million, three hundred forty-one thousand, four hundred twenty-eight".