20392343 has 2 divisors, whose sum is σ = 20392344. Its totient is φ = 20392342.

The previous prime is 20392297. The next prime is 20392357. The reversal of 20392343 is 34329302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20392343 - 2⁶ = 20392279 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 (20392373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10196171 + 10196172.

It is an arithmetic number, because the mean of its divisors is an integer number (10196172).

Almost surely, 2^20392343 is an apocalyptic number.

20392343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20392343 is an equidigital number, since it uses as much as digits as its factorization.

20392343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 20392343 is about 4515.7881925529. The cubic root of 20392343 is about 273.2052511483.

The spelling of 20392343 in words is "twenty million, three hundred ninety-two thousand, three hundred forty-three".