30470009 has 4 divisors (see below), whose sum is σ = 31794816. Its totient is φ = 29145204.

The previous prime is 30470003. The next prime is 30470017. The reversal of 30470009 is 90007403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30470009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1324783 = 30470009 / (3 + 0 + 4 + 7 + 0 + 0 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30470003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662369 + ... + 662414.

It is an arithmetic number, because the mean of its divisors is an integer number (7948704).

Almost surely, 2^30470009 is an apocalyptic number.

It is an amenable number.

30470009 is a deficient number, since it is larger than the sum of its proper divisors (1324807).

30470009 is a wasteful number, since it uses less digits than its factorization.

30470009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324806.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 30470009 is about 5519.9645832197. The cubic root of 30470009 is about 312.3375462828.

The spelling of 30470009 in words is "thirty million, four hundred seventy thousand, nine".