30850947 has 12 divisors (see below), whose sum is σ = 45023160. Its totient is φ = 20354688.

The previous prime is 30850913. The next prime is 30850949. The reversal of 30850947 is 74905803.

It is not a de Polignac number, because 30850947 - 2⁸ = 30850691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30850949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16797 + ... + 18542.

It is an arithmetic number, because the mean of its divisors is an integer number (3751930).

Almost surely, 2^30850947 is an apocalyptic number.

30850947 is a deficient number, since it is larger than the sum of its proper divisors (14172213).

30850947 is a wasteful number, since it uses less digits than its factorization.

30850947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35442 (or 35439 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 30850947 is about 5554.3628797550. The cubic root of 30850947 is about 313.6337806512.

The spelling of 30850947 in words is "thirty million, eight hundred fifty thousand, nine hundred forty-seven".