30968523 has 6 divisors (see below), whose sum is σ = 44732324. Its totient is φ = 20645676.

The previous prime is 30968521. The next prime is 30968573. The reversal of 30968523 is 32586903.

It is not a de Polignac number, because 30968523 - 2¹ = 30968521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30968521) 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, 1720465 + ... + 1720482.

Almost surely, 2^30968523 is an apocalyptic number.

30968523 is a deficient number, since it is larger than the sum of its proper divisors (13763801).

30968523 is a wasteful number, since it uses less digits than its factorization.

30968523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440953 (or 3440950 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 30968523 is about 5564.9369268663. The cubic root of 30968523 is about 314.0317053195.

The spelling of 30968523 in words is "thirty million, nine hundred sixty-eight thousand, five hundred twenty-three".