30890873 has 8 divisors (see below), whose sum is σ = 33364800. Its totient is φ = 28430928.

The previous prime is 30890869. The next prime is 30890929. The reversal of 30890873 is 37809803.

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 30890873 - 2² = 30890869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30890803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (4170600).

Almost surely, 2^30890873 is an apocalyptic number.

It is an amenable number.

30890873 is a deficient number, since it is larger than the sum of its proper divisors (2473927).

30890873 is a wasteful number, since it uses less digits than its factorization.

30890873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30890873 is about 5557.9558292595. The cubic root of 30890873 is about 313.7690195504.

The spelling of 30890873 in words is "thirty million, eight hundred ninety thousand, eight hundred seventy-three".