693243613 has 4 divisors (see below), whose sum is σ = 693326268. Its totient is φ = 693160960.

The previous prime is 693243601. The next prime is 693243623. The reversal of 693243613 is 316342396.

693243613 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 can be written as a sum of positive squares in 2 ways, for example, as 471888729 + 221354884 = 21723^2 + 14878^2 .

It is a cyclic number.

It is not a de Polignac number, because 693243613 - 2²⁹ = 156372701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693243623) 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, 27118 + ... + 46063.

It is an arithmetic number, because the mean of its divisors is an integer number (173331567).

Almost surely, 2^693243613 is an apocalyptic number.

It is an amenable number.

693243613 is a deficient number, since it is larger than the sum of its proper divisors (82655).

693243613 is an equidigital number, since it uses as much as digits as its factorization.

693243613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82654.

The product of its digits is 69984, while the sum is 37.

The square root of 693243613 is about 26329.5198019257. The cubic root of 693243613 is about 885.0380836283.

The spelling of 693243613 in words is "six hundred ninety-three million, two hundred forty-three thousand, six hundred thirteen".