30940847 has 8 divisors (see below), whose sum is σ = 35941152. Its totient is φ = 26085600.

The previous prime is 30940841. The next prime is 30940853. The reversal of 30940847 is 74804903.

It is an interprime number because it is at equal distance from previous prime (30940841) and next prime (30940853).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30940847 - 2¹² = 30936751 is a prime.

It is a super-3 number, since 3×30940847³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30940841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35804 + ... + 36657.

It is an arithmetic number, because the mean of its divisors is an integer number (4492644).

Almost surely, 2^30940847 is an apocalyptic number.

30940847 is a deficient number, since it is larger than the sum of its proper divisors (5000305).

30940847 is an equidigital number, since it uses as much as digits as its factorization.

30940847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72529.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30940847 is about 5562.4497301099. The cubic root of 30940847 is about 313.9381293165.

The spelling of 30940847 in words is "thirty million, nine hundred forty thousand, eight hundred forty-seven".