20375743 has 2 divisors, whose sum is σ = 20375744. Its totient is φ = 20375742.

The previous prime is 20375699. The next prime is 20375783. The reversal of 20375743 is 34757302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20375743 - 2¹³ = 20367551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20375783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187871 + 10187872.

It is an arithmetic number, because the mean of its divisors is an integer number (10187872).

Almost surely, 2^20375743 is an apocalyptic number.

20375743 is a deficient number, since it is larger than the sum of its proper divisors (1).

20375743 is an equidigital number, since it uses as much as digits as its factorization.

20375743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 20375743 is about 4513.9498224947. The cubic root of 20375743 is about 273.1310985064.

The spelling of 20375743 in words is "twenty million, three hundred seventy-five thousand, seven hundred forty-three".