30941047 has 4 divisors (see below), whose sum is σ = 31247496. Its totient is φ = 30634600.

The previous prime is 30941041. The next prime is 30941077. The reversal of 30941047 is 74014903.

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

It is a cyclic number.

It is not a de Polignac number, because 30941047 - 2⁷ = 30940919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30941041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153073 + ... + 153274.

It is an arithmetic number, because the mean of its divisors is an integer number (7811874).

Almost surely, 2^30941047 is an apocalyptic number.

30941047 is a deficient number, since it is larger than the sum of its proper divisors (306449).

30941047 is a wasteful number, since it uses less digits than its factorization.

30941047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306448.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30941047 is about 5562.4677077714. The cubic root of 30941047 is about 313.9388057416.

The spelling of 30941047 in words is "thirty million, nine hundred forty-one thousand, forty-seven".