30804685 has 4 divisors (see below), whose sum is σ = 36965628. Its totient is φ = 24643744.

The previous prime is 30804679. The next prime is 30804689. The reversal of 30804685 is 58640803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16621929 + 14182756 = 4077^2 + 3766^2 .

It is a cyclic number.

It is not a de Polignac number, because 30804685 - 2¹⁷ = 30673613 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 30804685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30804689) 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 3 ways as a sum of consecutive naturals, for example, 3080464 + ... + 3080473.

It is an arithmetic number, because the mean of its divisors is an integer number (9241407).

Almost surely, 2^30804685 is an apocalyptic number.

It is an amenable number.

30804685 is a deficient number, since it is larger than the sum of its proper divisors (6160943).

30804685 is an equidigital number, since it uses as much as digits as its factorization.

30804685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160942.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 30804685 is about 5550.1968433561. The cubic root of 30804685 is about 313.4769342027.

The spelling of 30804685 in words is "thirty million, eight hundred four thousand, six hundred eighty-five".