30688694 has 8 divisors (see below), whose sum is σ = 46063080. Its totient is φ = 15334336.

The previous prime is 30688639. The next prime is 30688703. The reversal of 30688694 is 49688603.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 284 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (5757885).

Almost surely, 2^30688694 is an apocalyptic number.

30688694 is a deficient number, since it is larger than the sum of its proper divisors (15374386).

30688694 is a wasteful number, since it uses less digits than its factorization.

30688694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 30688694 is about 5539.7377194232. The cubic root of 30688694 is about 313.0829872465.

The spelling of 30688694 in words is "thirty million, six hundred eighty-eight thousand, six hundred ninety-four".