30906933 has 8 divisors (see below), whose sum is σ = 41731200. Its totient is φ = 20343648.

The previous prime is 30906929. The next prime is 30906937. The reversal of 30906933 is 33960903.

It is an interprime number because it is at equal distance from previous prime (30906929) and next prime (30906937).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30906933 - 2² = 30906929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30906894 and 30906903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30906937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64968 + ... + 65441.

It is an arithmetic number, because the mean of its divisors is an integer number (5216400).

Almost surely, 2^30906933 is an apocalyptic number.

It is an amenable number.

30906933 is a deficient number, since it is larger than the sum of its proper divisors (10824267).

30906933 is a wasteful number, since it uses less digits than its factorization.

30906933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130491.

The product of its (nonzero) digits is 13122, while the sum is 33.

The square root of 30906933 is about 5559.4004173112. The cubic root of 30906933 is about 313.8233857428.

The spelling of 30906933 in words is "thirty million, nine hundred six thousand, nine hundred thirty-three".