30864009 has 16 divisors (see below), whose sum is σ = 45201600. Its totient is φ = 18576960.

The previous prime is 30863929. The next prime is 30864017. The reversal of 30864009 is 90046803.

It is not a de Polignac number, because 30864009 - 2¹⁹ = 30339721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30864049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1779 + ... + 8055.

It is an arithmetic number, because the mean of its divisors is an integer number (2825100).

Almost surely, 2^30864009 is an apocalyptic number.

It is an amenable number.

30864009 is a deficient number, since it is larger than the sum of its proper divisors (14337591).

30864009 is a wasteful number, since it uses less digits than its factorization.

30864009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30864009 is about 5555.5385877519. The cubic root of 30864009 is about 313.6780376008.

The spelling of 30864009 in words is "thirty million, eight hundred sixty-four thousand, nine".