20323379 has 2 divisors, whose sum is σ = 20323380. Its totient is φ = 20323378.

The previous prime is 20323367. The next prime is 20323423. The reversal of 20323379 is 97332302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20323339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161689 + 10161690.

It is an arithmetic number, because the mean of its divisors is an integer number (10161690).

Almost surely, 2^20323379 is an apocalyptic number.

20323379 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323379 is an equidigital number, since it uses as much as digits as its factorization.

20323379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 20323379 is about 4508.1458494596. The cubic root of 20323379 is about 272.8969228949.

It can be divided in two parts, 20323 and 379, that added together give a palindrome (20702).

The spelling of 20323379 in words is "twenty million, three hundred twenty-three thousand, three hundred seventy-nine".