693939373 has 2 divisors, whose sum is σ = 693939374. Its totient is φ = 693939372.

The previous prime is 693939361. The next prime is 693939377. The reversal of 693939373 is 373939396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 479697604 + 214241769 = 21902^2 + 14637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-693939373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 693939373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693939377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346969686 + 346969687.

It is an arithmetic number, because the mean of its divisors is an integer number (346969687).

Almost surely, 2^693939373 is an apocalyptic number.

It is an amenable number.

693939373 is a deficient number, since it is larger than the sum of its proper divisors (1).

693939373 is an equidigital number, since it uses as much as digits as its factorization.

693939373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2480058, while the sum is 52.

The square root of 693939373 is about 26342.7290347830. The cubic root of 693939373 is about 885.3340681842.

The spelling of 693939373 in words is "six hundred ninety-three million, nine hundred thirty-nine thousand, three hundred seventy-three".