693813229 has 2 divisors, whose sum is σ = 693813230. Its totient is φ = 693813228.

The previous prime is 693813227. The next prime is 693813247. The reversal of 693813229 is 922318396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610584100 + 83229129 = 24710^2 + 9123^2 .

It is a cyclic number.

It is not a de Polignac number, because 693813229 - 2¹ = 693813227 is a prime.

Together with 693813227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693813223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346906614 + 346906615.

It is an arithmetic number, because the mean of its divisors is an integer number (346906615).

Almost surely, 2^693813229 is an apocalyptic number.

It is an amenable number.

693813229 is a deficient number, since it is larger than the sum of its proper divisors (1).

693813229 is an equidigital number, since it uses as much as digits as its factorization.

693813229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 693813229 is about 26340.3346410026. The cubic root of 693813229 is about 885.2804197182.

The spelling of 693813229 in words is "six hundred ninety-three million, eight hundred thirteen thousand, two hundred twenty-nine".