30827849 has 8 divisors (see below), whose sum is σ = 33278280. Its totient is φ = 28388736.

The previous prime is 30827833. The next prime is 30827873. The reversal of 30827849 is 94872803.

It can be written as a sum of positive squares in 4 ways, for example, as 8596624 + 22231225 = 2932^2 + 4715^2 .

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 30827849 - 2⁴ = 30827833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30827809) 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 7 ways as a sum of consecutive naturals, for example, 3347 + ... + 8535.

It is an arithmetic number, because the mean of its divisors is an integer number (4159785).

Almost surely, 2^30827849 is an apocalyptic number.

It is an amenable number.

30827849 is a deficient number, since it is larger than the sum of its proper divisors (2450431).

30827849 is a wasteful number, since it uses less digits than its factorization.

30827849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 30827849 is about 5552.2832240440. The cubic root of 30827849 is about 313.5554889244. Note that the first 3 decimals are identical.

The spelling of 30827849 in words is "thirty million, eight hundred twenty-seven thousand, eight hundred forty-nine".