20343607 has 2 divisors, whose sum is σ = 20343608. Its totient is φ = 20343606.

The previous prime is 20343593. The next prime is 20343619. The reversal of 20343607 is 70634302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20343607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20343677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171803 + 10171804.

It is an arithmetic number, because the mean of its divisors is an integer number (10171804).

Almost surely, 2^20343607 is an apocalyptic number.

20343607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20343607 is an equidigital number, since it uses as much as digits as its factorization.

20343607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20343607 is about 4510.3887859031. The cubic root of 20343607 is about 272.9874316066.

Adding to 20343607 its reverse (70634302), we get a palindrome (90977909).

The spelling of 20343607 in words is "twenty million, three hundred forty-three thousand, six hundred seven".