30849953 has 2 divisors, whose sum is σ = 30849954. Its totient is φ = 30849952.

The previous prime is 30849941. The next prime is 30850007. The reversal of 30849953 is 35994803.

30849953 is nontrivially palindromic in base 5.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18515809 + 12334144 = 4303^2 + 3512^2 .

It is a cyclic number.

It is not a de Polignac number, because 30849953 - 2¹⁰ = 30848929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30849953.

It is not a weakly prime, because it can be changed into another prime (30849913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15424976 + 15424977.

It is an arithmetic number, because the mean of its divisors is an integer number (15424977).

Almost surely, 2^30849953 is an apocalyptic number.

It is an amenable number.

30849953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30849953 is an equidigital number, since it uses as much as digits as its factorization.

30849953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 30849953 is about 5554.2733998247. The cubic root of 30849953 is about 313.6304122476.

The spelling of 30849953 in words is "thirty million, eight hundred forty-nine thousand, nine hundred fifty-three".