693972613 has 2 divisors, whose sum is σ = 693972614. Its totient is φ = 693972612.

The previous prime is 693972599. The next prime is 693972641. The reversal of 693972613 is 316279396.

693972613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348867684 + 345104929 = 18678^2 + 18577^2 .

It is a cyclic number.

It is not a de Polignac number, because 693972613 - 2¹³ = 693964421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693972413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346986306 + 346986307.

It is an arithmetic number, because the mean of its divisors is an integer number (346986307).

Almost surely, 2^693972613 is an apocalyptic number.

It is an amenable number.

693972613 is a deficient number, since it is larger than the sum of its proper divisors (1).

693972613 is an equidigital number, since it uses as much as digits as its factorization.

693972613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 46.

The square root of 693972613 is about 26343.3599413590. The cubic root of 693972613 is about 885.3482039217.

It can be divided in two parts, 69397 and 2613, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 693972613 in words is "six hundred ninety-three million, nine hundred seventy-two thousand, six hundred thirteen".