30086805 has 16 divisors (see below), whose sum is σ = 55016064. Its totient is φ = 13753920.

The previous prime is 30086801. The next prime is 30086813. The reversal of 30086805 is 50868003.

It is not a de Polignac number, because 30086805 - 2² = 30086801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30086801) 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, 143166 + ... + 143375.

It is an arithmetic number, because the mean of its divisors is an integer number (3438504).

Almost surely, 2^30086805 is an apocalyptic number.

30086805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30086805 is a deficient number, since it is larger than the sum of its proper divisors (24929259).

30086805 is a wasteful number, since it uses less digits than its factorization.

30086805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286556.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 30086805 is about 5485.1440272795. The cubic root of 30086805 is about 311.0226545809.

The spelling of 30086805 in words is "thirty million, eighty-six thousand, eight hundred five".