30940671 has 8 divisors (see below), whose sum is σ = 41361840. Its totient is φ = 20573312.

The previous prime is 30940661. The next prime is 30940703. The reversal of 30940671 is 17604903.

It is a happy number.

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 30940671 - 2⁵ = 30940639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30940601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12090 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (5170230).

Almost surely, 2^30940671 is an apocalyptic number.

30940671 is a deficient number, since it is larger than the sum of its proper divisors (10421169).

30940671 is a wasteful number, since it uses less digits than its factorization.

30940671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26905.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 30940671 is about 5562.4339097197. The cubic root of 30940671 is about 313.9375340601.

The spelling of 30940671 in words is "thirty million, nine hundred forty thousand, six hundred seventy-one".