30747009 has 16 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 19715280.

The previous prime is 30746987. The next prime is 30747019. The reversal of 30747009 is 90074703.

It is not a de Polignac number, because 30747009 - 2⁸ = 30746753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30747019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15724 + ... + 17570.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^30747009 is an apocalyptic number.

It is an amenable number.

30747009 is a deficient number, since it is larger than the sum of its proper divisors (11830911).

30747009 is a wasteful number, since it uses less digits than its factorization.

30747009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 30747009 is about 5544.9985572586. The cubic root of 30747009 is about 313.2811697027.

The spelling of 30747009 in words is "thirty million, seven hundred forty-seven thousand, nine".