693000387 has 32 divisors (see below), whose sum is σ = 1050485760. Its totient is φ = 451357920.

The previous prime is 693000379. The next prime is 693000437. The reversal of 693000387 is 783000396.

It is not a de Polignac number, because 693000387 - 2³ = 693000379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (693000307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386908 + ... + 388694.

It is an arithmetic number, because the mean of its divisors is an integer number (32827680).

Almost surely, 2^693000387 is an apocalyptic number.

693000387 is a deficient number, since it is larger than the sum of its proper divisors (357485373).

693000387 is a wasteful number, since it uses less digits than its factorization.

693000387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 693000387 is about 26324.9005126325. The cubic root of 693000387 is about 884.9345656878.

Subtracting 693000387 from its reverse (783000396), we obtain a palindrome (90000009).

The spelling of 693000387 in words is "six hundred ninety-three million, three hundred eighty-seven", and thus it is an aban number.