30800729 has 8 divisors (see below), whose sum is σ = 32568000. Its totient is φ = 29048112.

The previous prime is 30800713. The next prime is 30800779. The reversal of 30800729 is 92700803.

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

It is not a de Polignac number, because 30800729 - 2⁴ = 30800713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30800779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (4071000).

Almost surely, 2^30800729 is an apocalyptic number.

It is an amenable number.

30800729 is a deficient number, since it is larger than the sum of its proper divisors (1767271).

30800729 is a wasteful number, since it uses less digits than its factorization.

30800729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7327.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 30800729 is about 5549.8404481570. The cubic root of 30800729 is about 313.4635145141.

The spelling of 30800729 in words is "thirty million, eight hundred thousand, seven hundred twenty-nine".