20379323 has 4 divisors (see below), whose sum is σ = 20683560. Its totient is φ = 20075088.

The previous prime is 20379319. The next prime is 20379349. The reversal of 20379323 is 32397302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20379323 - 2² = 20379319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20379523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152018 + ... + 152151.

It is an arithmetic number, because the mean of its divisors is an integer number (5170890).

Almost surely, 2^20379323 is an apocalyptic number.

20379323 is a deficient number, since it is larger than the sum of its proper divisors (304237).

20379323 is an equidigital number, since it uses as much as digits as its factorization.

20379323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304236.

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

The square root of 20379323 is about 4514.3463535710. The cubic root of 20379323 is about 273.1470938670.

It can be divided in two parts, 20379 and 323, that added together give a palindrome (20702).

The spelling of 20379323 in words is "twenty million, three hundred seventy-nine thousand, three hundred twenty-three".