693819223 has 2 divisors, whose sum is σ = 693819224. Its totient is φ = 693819222.

The previous prime is 693819221. The next prime is 693819239. The reversal of 693819223 is 322918396.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 693819223 - 2¹ = 693819221 is a prime.

It is a super-2 number, since 2×693819223² = 962770228408647458, which contains 22 as substring.

Together with 693819221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 693819223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693819221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346909611 + 346909612.

It is an arithmetic number, because the mean of its divisors is an integer number (346909612).

Almost surely, 2^693819223 is an apocalyptic number.

693819223 is a deficient number, since it is larger than the sum of its proper divisors (1).

693819223 is an equidigital number, since it uses as much as digits as its factorization.

693819223 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 693819223 is about 26340.4484206325. The cubic root of 693819223 is about 885.2829690862.

The spelling of 693819223 in words is "six hundred ninety-three million, eight hundred nineteen thousand, two hundred twenty-three".