30870205 has 8 divisors (see below), whose sum is σ = 37147392. Its totient is φ = 24627408.

The previous prime is 30870197. The next prime is 30870223. The reversal of 30870205 is 50207803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30870205 - 2³ = 30870197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30870205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6577 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (4643424).

Almost surely, 2^30870205 is an apocalyptic number.

It is an amenable number.

30870205 is a deficient number, since it is larger than the sum of its proper divisors (6277187).

30870205 is a wasteful number, since it uses less digits than its factorization.

30870205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17195.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 30870205 is about 5556.0962014710. The cubic root of 30870205 is about 313.6990266550.

The spelling of 30870205 in words is "thirty million, eight hundred seventy thousand, two hundred five".