30502971 has 6 divisors (see below), whose sum is σ = 44059860. Its totient is φ = 20335308.

The previous prime is 30502951. The next prime is 30502973. The reversal of 30502971 is 17920503.

It is not a de Polignac number, because 30502971 - 2⁵ = 30502939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30502973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1694601 + ... + 1694618.

It is an arithmetic number, because the mean of its divisors is an integer number (7343310).

Almost surely, 2^30502971 is an apocalyptic number.

30502971 is a deficient number, since it is larger than the sum of its proper divisors (13556889).

30502971 is a wasteful number, since it uses less digits than its factorization.

30502971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389225 (or 3389222 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 30502971 is about 5522.9494837451. The cubic root of 30502971 is about 312.4501330563.

The spelling of 30502971 in words is "thirty million, five hundred two thousand, nine hundred seventy-one".