30807693 has 12 divisors (see below), whose sum is σ = 50857248. Its totient is φ = 17604360.

The previous prime is 30807677. The next prime is 30807713. The reversal of 30807693 is 39670803.

It is not a de Polignac number, because 30807693 - 2⁴ = 30807677 is a prime.

It is a super-3 number, since 3×30807693³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30807613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244443 + ... + 244568.

It is an arithmetic number, because the mean of its divisors is an integer number (4238104).

Almost surely, 2^30807693 is an apocalyptic number.

It is an amenable number.

30807693 is a deficient number, since it is larger than the sum of its proper divisors (20049555).

30807693 is a wasteful number, since it uses less digits than its factorization.

30807693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489024 (or 489021 counting only the distinct ones).

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

The square root of 30807693 is about 5550.4678181213. The cubic root of 30807693 is about 313.4871372820.

The spelling of 30807693 in words is "thirty million, eight hundred seven thousand, six hundred ninety-three".