30908086 has 16 divisors (see below), whose sum is σ = 50664528. Its totient is φ = 14024800.

The previous prime is 30908081. The next prime is 30908089. The reversal of 30908086 is 68080903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30908081) 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, 19956 + ... + 21448.

It is an arithmetic number, because the mean of its divisors is an integer number (3166533).

Almost surely, 2^30908086 is an apocalyptic number.

30908086 is a deficient number, since it is larger than the sum of its proper divisors (19756442).

30908086 is a wasteful number, since it uses less digits than its factorization.

30908086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 30908086 is about 5559.5041145771. The cubic root of 30908086 is about 313.8272881451.

Adding to 30908086 its reverse (68080903), we get a palindrome (98988989).

The spelling of 30908086 in words is "thirty million, nine hundred eight thousand, eighty-six".