30939275 has 6 divisors (see below), whose sum is σ = 38364732. Its totient is φ = 24751400.

The previous prime is 30939253. The next prime is 30939299. The reversal of 30939275 is 57293903.

It is not a de Polignac number, because 30939275 - 2⁶ = 30939211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618761 + ... + 618810.

It is an arithmetic number, because the mean of its divisors is an integer number (6394122).

Almost surely, 2^30939275 is an apocalyptic number.

30939275 is a deficient number, since it is larger than the sum of its proper divisors (7425457).

30939275 is a wasteful number, since it uses less digits than its factorization.

30939275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237581 (or 1237576 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 30939275 is about 5562.3084236673. The cubic root of 30939275 is about 313.9328125143.

The spelling of 30939275 in words is "thirty million, nine hundred thirty-nine thousand, two hundred seventy-five".