30206933 has 2 divisors, whose sum is σ = 30206934. Its totient is φ = 30206932.

The previous prime is 30206923. The next prime is 30206959. The reversal of 30206933 is 33960203.

It is an a-pointer prime, because the next prime (30206959) can be obtained adding 30206933 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26234884 + 3972049 = 5122^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 30206933 - 2²⁰ = 29158357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30206923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15103466 + 15103467.

It is an arithmetic number, because the mean of its divisors is an integer number (15103467).

Almost surely, 2^30206933 is an apocalyptic number.

It is an amenable number.

30206933 is a deficient number, since it is larger than the sum of its proper divisors (1).

30206933 is an equidigital number, since it uses as much as digits as its factorization.

30206933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 30206933 is about 5496.0834236754. The cubic root of 30206933 is about 311.4360463595.

The spelling of 30206933 in words is "thirty million, two hundred six thousand, nine hundred thirty-three".