30970747 has 2 divisors, whose sum is σ = 30970748. Its totient is φ = 30970746.

The previous prime is 30970727. The next prime is 30970757. The reversal of 30970747 is 74707903.

It is a strong prime.

It is an emirp because it is prime and its reverse (74707903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30970747 - 2⁷ = 30970619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30970727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15485373 + 15485374.

It is an arithmetic number, because the mean of its divisors is an integer number (15485374).

Almost surely, 2^30970747 is an apocalyptic number.

30970747 is a deficient number, since it is larger than the sum of its proper divisors (1).

30970747 is an equidigital number, since it uses as much as digits as its factorization.

30970747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 30970747 is about 5565.1367458491. The cubic root of 30970747 is about 314.0392225201.

The spelling of 30970747 in words is "thirty million, nine hundred seventy thousand, seven hundred forty-seven".