30948671 has 4 divisors (see below), whose sum is σ = 33329352. Its totient is φ = 28567992.

The previous prime is 30948667. The next prime is 30948677. The reversal of 30948671 is 17684903.

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 30948671 - 2² = 30948667 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 (30948677) 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, 1190321 + ... + 1190346.

It is an arithmetic number, because the mean of its divisors is an integer number (8332338).

Almost surely, 2^30948671 is an apocalyptic number.

30948671 is a deficient number, since it is larger than the sum of its proper divisors (2380681).

30948671 is a wasteful number, since it uses less digits than its factorization.

30948671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380680.

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

The square root of 30948671 is about 5563.1529729102. The cubic root of 30948671 is about 313.9645888908.

The spelling of 30948671 in words is "thirty million, nine hundred forty-eight thousand, six hundred seventy-one".