693374393 has 8 divisors (see below), whose sum is σ = 741431880. Its totient is φ = 646124800.

The previous prime is 693374377. The next prime is 693374401. The reversal of 693374393 is 393473396.

It can be written as a sum of positive squares in 4 ways, for example, as 412577344 + 280797049 = 20312^2 + 16757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 693374393 - 2⁴ = 693374377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (693374323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200198 + ... + 203631.

It is an arithmetic number, because the mean of its divisors is an integer number (92678985).

Almost surely, 2^693374393 is an apocalyptic number.

It is an amenable number.

693374393 is a deficient number, since it is larger than the sum of its proper divisors (48057487).

693374393 is a wasteful number, since it uses less digits than its factorization.

693374393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403947.

The product of its digits is 1102248, while the sum is 47.

The square root of 693374393 is about 26332.0032090230. The cubic root of 693374393 is about 885.0937341003.

The spelling of 693374393 in words is "six hundred ninety-three million, three hundred seventy-four thousand, three hundred ninety-three".