30963866 has 4 divisors (see below), whose sum is σ = 46445802. Its totient is φ = 15481932.

The previous prime is 30963853. The next prime is 30963883. The reversal of 30963866 is 66836903.

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

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 8826841 = 4705^2 + 2971^2 .

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, 7740965 + ... + 7740968.

Almost surely, 2^30963866 is an apocalyptic number.

30963866 is a deficient number, since it is larger than the sum of its proper divisors (15481936).

30963866 is a wasteful number, since it uses less digits than its factorization.

30963866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15481935.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 30963866 is about 5564.5184877040. The cubic root of 30963866 is about 314.0159633249.

The spelling of 30963866 in words is "thirty million, nine hundred sixty-three thousand, eight hundred sixty-six".