30468971 has 4 divisors (see below), whose sum is σ = 32812752. Its totient is φ = 28125192.

The previous prime is 30468967. The next prime is 30468979. The reversal of 30468971 is 17986403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17986403 = 37 ⋅486119.

It is a cyclic number.

It is not a de Polignac number, because 30468971 - 2² = 30468967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30468979) 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, 1171871 + ... + 1171896.

It is an arithmetic number, because the mean of its divisors is an integer number (8203188).

Almost surely, 2^30468971 is an apocalyptic number.

30468971 is a deficient number, since it is larger than the sum of its proper divisors (2343781).

30468971 is a wasteful number, since it uses less digits than its factorization.

30468971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343780.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30468971 is about 5519.8705600766. The cubic root of 30468971 is about 312.3339995159. Note that the first 3 decimals are identical.

The spelling of 30468971 in words is "thirty million, four hundred sixty-eight thousand, nine hundred seventy-one".