30946970 has 16 divisors (see below), whose sum is σ = 58981608. Its totient is φ = 11650560.

The previous prime is 30946961. The next prime is 30946999. The reversal of 30946970 is 7964903.

It is a Cunningham number, because it is equal to 5563²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 24098281 + 6848689 = 4909^2 + 2617^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 90851 + ... + 91190.

Almost surely, 2^30946970 is an apocalyptic number.

30946970 is a deficient number, since it is larger than the sum of its proper divisors (28034638).

30946970 is a wasteful number, since it uses less digits than its factorization.

30946970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182065.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 30946970 is about 5563.0000898796. Note that the first 4 decimals coincide. The cubic root of 30946970 is about 313.9588367477.

The spelling of 30946970 in words is "thirty million, nine hundred forty-six thousand, nine hundred seventy".