30855609 has 12 divisors (see below), whose sum is σ = 44911152. Its totient is φ = 20412600.

The previous prime is 30855599. The next prime is 30855619. The reversal of 30855609 is 90655803.

It is an interprime number because it is at equal distance from previous prime (30855599) and next prime (30855619).

It is not a de Polignac number, because 30855609 - 2⁷ = 30855481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30855619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11907 + ... + 14264.

It is an arithmetic number, because the mean of its divisors is an integer number (3742596).

Almost surely, 2^30855609 is an apocalyptic number.

It is an amenable number.

30855609 is a deficient number, since it is larger than the sum of its proper divisors (14055543).

30855609 is a wasteful number, since it uses less digits than its factorization.

30855609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26308 (or 26305 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 30855609 is about 5554.7825339972. The cubic root of 30855609 is about 313.6495779733.

The spelling of 30855609 in words is "thirty million, eight hundred fifty-five thousand, six hundred nine".