30020693 has 2 divisors, whose sum is σ = 30020694. Its totient is φ = 30020692.

The previous prime is 30020677. The next prime is 30020699. The reversal of 30020693 is 39602003.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28121809 + 1898884 = 5303^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020693 - 2⁴ = 30020677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30020699) by changing a digit.

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 as a sum of consecutive naturals, namely, 15010346 + 15010347.

It is an arithmetic number, because the mean of its divisors is an integer number (15010347).

Almost surely, 2^30020693 is an apocalyptic number.

It is an amenable number.

30020693 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020693 is an equidigital number, since it uses as much as digits as its factorization.

30020693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30020693 is about 5479.1142532347. The cubic root of 30020693 is about 310.7946763558.

Adding to 30020693 its reverse (39602003), we get a palindrome (69622696).

The spelling of 30020693 in words is "thirty million, twenty thousand, six hundred ninety-three".