30726089 has 8 divisors (see below), whose sum is σ = 32770080. Its totient is φ = 28708416.

The previous prime is 30726083. The next prime is 30726103. The reversal of 30726089 is 98062703.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30726089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30726083) 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, 4139 + ... + 8864.

It is an arithmetic number, because the mean of its divisors is an integer number (4096260).

Almost surely, 2^30726089 is an apocalyptic number.

It is an amenable number.

30726089 is a deficient number, since it is larger than the sum of its proper divisors (2043991).

30726089 is a wasteful number, since it uses less digits than its factorization.

30726089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13159.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30726089 is about 5543.1118516588. Note that the first 3 decimals coincide. The cubic root of 30726089 is about 313.2101023129.

The spelling of 30726089 in words is "thirty million, seven hundred twenty-six thousand, eighty-nine".