20030347 has 2 divisors, whose sum is σ = 20030348. Its totient is φ = 20030346.

The previous prime is 20030333. The next prime is 20030363. The reversal of 20030347 is 74303002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030347 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015173 + 10015174.

It is an arithmetic number, because the mean of its divisors is an integer number (10015174).

Almost surely, 2^20030347 is an apocalyptic number.

20030347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030347 is an equidigital number, since it uses as much as digits as its factorization.

20030347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20030347 is about 4475.5275666674. The cubic root of 20030347 is about 271.5789829976.

Adding to 20030347 its reverse (74303002), we get a palindrome (94333349).

The spelling of 20030347 in words is "twenty million, thirty thousand, three hundred forty-seven".