30948886 has 4 divisors (see below), whose sum is σ = 46423332. Its totient is φ = 15474442.

The previous prime is 30948871. The next prime is 30948893. The reversal of 30948886 is 68884903.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7737220 + ... + 7737223.

It is an arithmetic number, because the mean of its divisors is an integer number (11605833).

Almost surely, 2^30948886 is an apocalyptic number.

30948886 is a deficient number, since it is larger than the sum of its proper divisors (15474446).

30948886 is a wasteful number, since it uses less digits than its factorization.

30948886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474445.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 30948886 is about 5563.1722964510. The cubic root of 30948886 is about 313.9653159250.

The spelling of 30948886 in words is "thirty million, nine hundred forty-eight thousand, eight hundred eighty-six".