30470565 has 16 divisors (see below), whose sum is σ = 49422528. Its totient is φ = 16027776.

The previous prime is 30470549. The next prime is 30470569. The reversal of 30470565 is 56507403.

It is not a de Polignac number, because 30470565 - 2⁴ = 30470549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30470569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12819 + ... + 15008.

It is an arithmetic number, because the mean of its divisors is an integer number (3088908).

Almost surely, 2^30470565 is an apocalyptic number.

It is an amenable number.

30470565 is a deficient number, since it is larger than the sum of its proper divisors (18951963).

30470565 is a wasteful number, since it uses less digits than its factorization.

30470565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27908.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 30470565 is about 5520.0149456319. The cubic root of 30470565 is about 312.3394460592.

Adding to 30470565 its reverse (56507403), we get a palindrome (86977968).

The spelling of 30470565 in words is "thirty million, four hundred seventy thousand, five hundred sixty-five".