30926289 has 8 divisors (see below), whose sum is σ = 41261472. Its totient is φ = 20604320.

The previous prime is 30926263. The next prime is 30926299. The reversal of 30926289 is 98262903.

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 30926289 - 2⁵ = 30926257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30926299) 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, 5557 + ... + 9629.

It is an arithmetic number, because the mean of its divisors is an integer number (5157684).

Almost surely, 2^30926289 is an apocalyptic number.

It is an amenable number.

30926289 is a deficient number, since it is larger than the sum of its proper divisors (10335183).

30926289 is a wasteful number, since it uses less digits than its factorization.

30926289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 30926289 is about 5561.1409800508. The cubic root of 30926289 is about 313.8888845079. Note that the first 5 decimals are identical.

The spelling of 30926289 in words is "thirty million, nine hundred twenty-six thousand, two hundred eighty-nine".